diff --git a/odoo/addons/base/tests/test_translate.py b/odoo/addons/base/tests/test_translate.py
index 6a652d17d70..05a4723bb90 100644
--- a/odoo/addons/base/tests/test_translate.py
+++ b/odoo/addons/base/tests/test_translate.py
@@ -874,6 +874,57 @@ class TestXMLTranslation(TransactionCase):
         self.assertEqual(view.with_env(env_fr).arch_db, archf % (terms_en[0], terms_fr[1]))
         self.assertEqual(view.with_env(env_nl).arch_db, archf % (terms_en[0], terms_nl[1]))
 
+    def test_sync_xml_collision(self):
+        """ Check translations of 'arch' after xml tags changes in source terms
+            when the same term appears in different elements with different
+            styles.
+        """
+        archf = '''<form class="row">
+    %s
+    <div class="s_table_of_content_vertical_navbar" data-name="Navbar" contenteditable="false">
+        <div class="s_table_of_content_navbar" style="top: 76px;"><a href="#table_of_content_heading_1672668075678_4" class="table_of_content_link">%s</a></div>
+    </div>
+    <div class="s_table_of_content_main" data-name="Content">
+        <section class="pb16">
+            <h1 data-anchor="true" class="o_default_snippet_text" id="table_of_content_heading_1672668075678_4">%s</h1>
+        </section>
+    </div>
+</form>'''
+        terms_en = ('Bread and cheese', 'Knive and Fork', 'Knive <span style="font-weight:bold">and</span> Fork')
+        terms_fr = ('Pain et fromage', 'Couteau et Fourchette', 'Couteau et Fourchette')
+        terms_nl = ('Brood and kaas', 'Mes en Vork', 'Mes en Vork')
+        view = self.create_view(archf, terms_en, en_US=terms_en, fr_FR=terms_fr, nl_NL=terms_nl)
+
+        env_nolang = self.env(context={})
+        env_en = self.env(context={'lang': 'en_US'})
+        env_fr = self.env(context={'lang': 'fr_FR'})
+        env_nl = self.env(context={'lang': 'nl_NL'})
+
+        self.assertEqual(view.with_env(env_nolang).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_fr).arch_db, archf % terms_fr)
+        self.assertEqual(view.with_env(env_nl).arch_db, archf % terms_nl)
+
+        # modify source term in view (small change)
+        terms_en = ('Bread and cheese', 'Knife and Fork', 'Knife <span style="font-weight:bold">and</span> Fork')
+        view.with_env(env_en).write({'arch_db': archf % terms_en})
+
+        # check whether translations have been kept
+        self.assertEqual(view.with_env(env_nolang).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_fr).arch_db, archf % terms_fr)
+        self.assertEqual(view.with_env(env_nl).arch_db, archf % terms_nl)
+
+        # modify source term in view (actual text change)
+        terms_en = ('Bread and cheese', 'Fork and Knife', 'Fork <span style="font-weight:bold">and</span> Knife')
+        view.with_env(env_en).write({'arch_db': archf % terms_en})
+
+        # check whether translations have been reset
+        self.assertEqual(view.with_env(env_nolang).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
+        self.assertEqual(view.with_env(env_fr).arch_db, archf % (terms_fr[0], terms_en[1], terms_en[2]))
+        self.assertEqual(view.with_env(env_nl).arch_db, archf % (terms_nl[0], terms_en[1], terms_en[2]))
+
     def test_cache_consistency(self):
         view = self.env["ir.ui.view"].create({
             "name": "test_translate_xml_cache_invalidation",
diff --git a/odoo/fields.py b/odoo/fields.py
index cf522bdae31..2e03ac87312 100644
--- a/odoo/fields.py
+++ b/odoo/fields.py
@@ -1801,14 +1801,17 @@ class _String(Field):
                 continue
             from_lang_value = old_translations.get(lang, old_translations.get('en_US'))
             translation_dictionary = self.get_translation_dictionary(from_lang_value, old_translations)
-            text2term = {self.get_text_content(term): term for term in new_terms}
+            text2terms = defaultdict(list)
+            for term in new_terms:
+                text2terms[self.get_text_content(term)].append(term)
 
             for old_term in list(translation_dictionary.keys()):
                 if old_term not in new_terms:
                     old_term_text = self.get_text_content(old_term)
-                    matches = get_close_matches(old_term_text, text2term, 1, 0.9)
+                    matches = get_close_matches(old_term_text, text2terms, 1, 0.9)
                     if matches:
-                        translation_dictionary[text2term[matches[0]]] = translation_dictionary.pop(old_term)
+                        closest_term = get_close_matches(old_term, text2terms[matches[0]], 1, 0)[0]
+                        translation_dictionary[closest_term] = translation_dictionary.pop(old_term)
             # pylint: disable=not-callable
             new_translations = {
                 l: self.translate(lambda term: translation_dictionary.get(term, {l: None})[l], cache_value)
diff --git a/odoo/tools/translate.py b/odoo/tools/translate.py
index afcad285d07..2fee48869d8 100644
--- a/odoo/tools/translate.py
+++ b/odoo/tools/translate.py
@@ -358,7 +358,8 @@ def html_term_converter(value):
 
 def get_text_content(term):
     """ Return the textual content of the given term. """
-    return html.fromstring(term).text_content()
+    content = html.fromstring(term).text_content()
+    return " ".join(content.split())
 
 xml_translate.get_text_content = get_text_content
 html_translate.get_text_content = get_text_content