In the latest master builds I see this warning at startup:

2020-05-05 09:34:51,713 [ 524] WARN - ugins.IdeaPluginDescriptorImpl - Resource bundle redefinition for plugin 'org.jetbrains.android'. Old value: messages.AndroidBundle, new value: messages.LintBundle

I'm not sure if this is a recent platform change or if this has been a problem since lint was split into its own module, but clearly we shouldn't combine these two modules into one plugin anymore if they can't have their own bundles. For a while we've been wanting to split lint into its own IDE plugin (since it should be usable separately from the Android plugin, for example for reuse by the Studio dev plugin (which bundles its own copy) and for users of plain Kotlin/Java projects who want to use the non-Android lint checks. This might be the push we needed to do that work.