$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rspec-mocks.git /var/lib/mock/f42-build-3409099-45146/root/chroot_tmpdir/scmroot/rubygem-rspec-mocks
Cloning into '/var/lib/mock/f42-build-3409099-45146/root/chroot_tmpdir/scmroot/rubygem-rspec-mocks'...
$ git fetch origin f61b7f5c690f66f669e7226568d8fc4fe0ed3437:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-rspec-mocks
 * [new ref]         f61b7f5c690f66f669e7226568d8fc4fe0ed3437 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f61b7f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild