Description of problem:
Under certain (which??) circumstances the validation check for html tags produces false positives. These false positives seem to match the entry the user had open just previous to the one now showing the warning. (i.e. the validation check is comparing the current msgstr with the previous msgid)

Version-Release number of selected component (if applicable):
Zanata version 2.2.0 (20130226-0301).

How reproducible:
sometimes

Steps to Reproduce:
1. open a message in the editor that contains html-tags
2. move to a different entry on the same page with different tags
  
Actual results:
Validation warnings are displayed that correspond to the previous entry

Expected results:
Validation warnings (if any) should correspond to the current entry

Additional info:
See private screenshot next comment