TestRunStatus shown in statistical gadgets does not match the actual TestRunStatus

The indexed value of the custom field TestRunStatus is not updated properly (i.e. refreshed) whenever a version is released or unreleased, or whenever versions are re-ranked in the project settings.

Thus, values shown in statistical gadgets (i.e. that use the lucene index) may show wrong values, that won't match the values if users do a listing of Test issues and include the TestRunStatus column.

A temporary workaround is to make a reindex right after making a (un)release of some version, or if you change the order of the version within the Versions project settings pane.  

Note: maybe this also happens with other custom fields, such as Requirement Status and the Test Set Status.