Running straight-thaw-versions fails on lsp-mode due to the change in 77f0521 as straight.el doesn't seem to be configured correctly when the fork/1 branch hasn't been fetched from the new remote. The *straight-process* buffers contains
$ git rev-parse --verify fork/1
fatal: Needed a single revision
Including the full remote name works, ie., git rev-parse --verify fork/fork/1