instances will not update

I am encountering a few situations where instances of will not update during db update. I receive warnings of the form, “trytond.convert Field action of not updated (id: menu_timeclock_view), because it has changed since the last update”.

These records do not show as out of sync in Administration>Models>Models>Data. I see from here[1] a discussion of the ability to “force the data update from the administration menu”. I assume this is through Administration>Modules>Modules. When I perform the update there, I get the same warnings, although the wizard reports that the update succeeds. In fact, it does not update then, or in later command line update requests.

[1] Domain not updated - #9 by ced

I guess it is because the XML definition is not canonical, for example using float instead of Decimal.