$ git clone -n https://src.fedoraproject.org/rpms/jacop.git /var/lib/mock/f40-build-2132818-50811/root/chroot_tmpdir/scmroot/jacop
Cloning into '/var/lib/mock/f40-build-2132818-50811/root/chroot_tmpdir/scmroot/jacop'...
$ git fetch origin 2dca92a3ca177b998f51752a70f428f55d5d2975:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jacop
 * [new ref]         2dca92a3ca177b998f51752a70f428f55d5d2975 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2dca92a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild