[FIX] base: set filename of javascript files of assets

A side effect of this bug was that other bugs like [1] wasn't caught by
the test suite.

[1] 2ed13c583e

odoo/addons/base/ir/ir_qweb/ir_qweb.py

@@ -344,7 +344,7 @@ class IrQWeb(models.AbstractModel, QWeb):
                     files.append({'atype': atype, 'url': href, 'filename': filename, 'content': el.text, 'media': media})
                 elif can_aggregate(src) and el.tag == 'script':
                     atype = 'text/javascript'
-                    path = [segment for segment in href.split('/') if segment]
+                    path = [segment for segment in src.split('/') if segment]
                     filename = get_resource_path(*path) if path else None
                     files.append({'atype': atype, 'url': src, 'filename': filename, 'content': el.text, 'media': media})
                 else: