$ git clone -n https://src.fedoraproject.org/rpms/modello.git /var/lib/mock/f39-build-1808408-41827/root/chroot_tmpdir/scmroot/modello
Cloning into '/var/lib/mock/f39-build-1808408-41827/root/chroot_tmpdir/scmroot/modello'...
$ git fetch origin 2a0dd5c2b9d4d71494f12e1fb60d136c1f6f2bf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/modello
 * [new ref]         2a0dd5c2b9d4d71494f12e1fb60d136c1f6f2bf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a0dd5c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild