The previous code, as explained at b505ba9e0a, was to avoid creating duplicated
code entries for the same source (as only one is considered).
In case of a po comment like
#. openerp-web
#: model:ir.ui.view,arch_db:base.ir_access_view_search
#: code:addons/web/static/src/js/chrome/search_inputs.js:716
#: code:addons/web/static/src/xml/base.xml:1125
#, python-format
the condition was not triggered (trans_type is model), creating two code entries
Necessary in #26614 to fix#26553