$ git clone -n https://src.fedoraproject.org/rpms/rubygem-globalid.git /var/lib/mock/f40-build-2149665-50890/root/chroot_tmpdir/scmroot/rubygem-globalid
Cloning into '/var/lib/mock/f40-build-2149665-50890/root/chroot_tmpdir/scmroot/rubygem-globalid'...
$ git fetch origin f18fef9e695cfca29e671dc284847533f0fdef79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-globalid
 * [new ref]         f18fef9e695cfca29e671dc284847533f0fdef79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f18fef9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild