[FIX] l10n_in_edi: separate value of RC from normal GST

Before
======
In E-invoice Value is pass as other values

After
====
No RC value is pass to the E-invoice because not required to pass RC value.

closes odoo/odoo#161125

Signed-off-by: Josse Colpaert <jco@odoo.com>

addons/l10n_in_edi/models/account_edi_format.py

@@ -583,6 +583,9 @@ class AccountEdiFormat(models.Model):
                     for gst in ["cgst", "sgst", "igst"]:
                         if any(tag in tags for tag in self.env.ref("l10n_in.tax_tag_%s"%(gst))):
                             line_code = gst
+                        # need to separate rc tax value so it's not pass to other values
+                        if any(tag in tags for tag in self.env.ref("l10n_in.tax_tag_%s_rc" % (gst))):
+                            line_code = gst + '_rc'
             return {
                 "tax": tax,
                 "base_product_id": invl.product_id,