Bitbake 4.0: Floating tag/branch without a fixed SRCREV

[cesar-pa]

When trying to build a recipe generated by the latest master cargo bitbake with Bitbake 4.0, the following error is thrown:

do_fetch: Bitbake Fetcher Error: FetchError("Recipe uses a floating tag/branch without a fixed SRCREV yet doesn't call bb.fetch2.get_srcrev() (use SRCPV in PV for OE).", None)

This check was recently added: https://lists.openembedded.org/g/bitbake-devel/topic/89051455#13344