$ git clone -n https://src.fedoraproject.org/rpms/gtkhash.git /var/lib/mock/f39-build-1774726-41509/root/chroot_tmpdir/scmroot/gtkhash
Cloning into '/var/lib/mock/f39-build-1774726-41509/root/chroot_tmpdir/scmroot/gtkhash'...
$ git fetch origin 89672857e756f67bf8a0d1d135cda71548008b4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtkhash
 * [new ref]         89672857e756f67bf8a0d1d135cda71548008b4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8967285 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild