Various commands not visible/enabled when they should be

Created originally on Bitbucket by aronnopanen (Aron Nopanen)

After upgrading to 4.5.0, I've found that a number of commands aren't visible in the 'Team' context menu or enabled in the toolbar when I would expect them to be. E.g.:

• Annotate
• Revert
• Add

...and I'm pretty sure there are several others.

Looking at plugin.xml, it seems that the problem commands all specify the following in their visibleWhen/enabledWhen specifications:

<reference definitionId="com.vectrace.MercurialEclipse.def.file" />

...but I'm just pattern matching.

This is on Spring Tool Suite 3.9.3, on top of Eclipse Oxygen.3 (4.7.3)

I'm using hg 4.3.1 (as part of Tortoise). I see the version compatibility warning in the release notes, but this version of hg has worked fine prior to the recent plugin upgrade.