Tags are not loaded from html if results are loaded from XML

[GoogleCodeExporter]

Pre-condition: Always Load Old Data from Xml setting is ON
1. Load tests and save results
2. Add tags for test cases in testdata (HTML/TSV)
3. Open Mabot
4. Added tags are not visible

This can be fixed. However there is one problem as the tags in datasource
are not the only tags. It is possible to add tags also in Mabot which means
that also those should be saved to the test cases even those are not in the
datasource. This will mean that if you want to remove some already saved
tags, that is possible only from Mabot with remove tags functionality. As
that works recursively for suites, it should not be too much work to remove
those in case there are some extra tags. It is anyway better to read the
new tags from datasource. 

Original issue reported on code.google.com by jpran...@gmail.com on 30 Dec 2008 at 9:25