$ git clone -n https://src.fedoraproject.org/rpms/rubygem-bindex.git /var/lib/mock/f41-build-819765-151891/root/chroot_tmpdir/scmroot/rubygem-bindex
Cloning into '/var/lib/mock/f41-build-819765-151891/root/chroot_tmpdir/scmroot/rubygem-bindex'...
$ git fetch origin 735880e4fc8fdda0cc92d9274a15801610915d4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-bindex
 * [new ref]         735880e4fc8fdda0cc92d9274a15801610915d4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 735880e Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild