$ git clone -n https://src.fedoraproject.org/rpms/xmlstreambuffer.git /var/lib/mock/f41-build-2044698-25295/root/chroot_tmpdir/scmroot/xmlstreambuffer
Cloning into '/var/lib/mock/f41-build-2044698-25295/root/chroot_tmpdir/scmroot/xmlstreambuffer'...
$ git fetch origin be8e87c0a34efac1018203b811712855d2587473:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmlstreambuffer
 * [new ref]         be8e87c0a34efac1018203b811712855d2587473 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be8e87c Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild