$ git clone -n https://src.fedoraproject.org/rpms/pcm.git /var/lib/mock/f39-build-1601234-38558/root/chroot_tmpdir/scmroot/pcm
Cloning into '/var/lib/mock/f39-build-1601234-38558/root/chroot_tmpdir/scmroot/pcm'...
$ git fetch origin 522b10d4a4aa85384105927de831b844393f1b56:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcm
 * [new ref]         522b10d4a4aa85384105927de831b844393f1b56 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 522b10d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild