$ git clone -n https://src.fedoraproject.org/rpms/frozen-bubble.git /var/lib/mock/f40-build-798572-141968/root/chroot_tmpdir/scmroot/frozen-bubble
Cloning into '/var/lib/mock/f40-build-798572-141968/root/chroot_tmpdir/scmroot/frozen-bubble'...
$ git fetch origin 554955fcc688855f92c4300506dd8d4d76a9f867:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/frozen-bubble
 * [new ref]         554955fcc688855f92c4300506dd8d4d76a9f867 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 554955f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild