$ git clone -n https://src.fedoraproject.org/rpms/itinerary.git /var/lib/mock/f40-build-2423484-60593/root/chroot_tmpdir/scmroot/itinerary
Cloning into '/var/lib/mock/f40-build-2423484-60593/root/chroot_tmpdir/scmroot/itinerary'...
$ git fetch origin 36431e4ab8d561911f1b767b6b907e012e01fd7f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/itinerary
 * [new ref]         36431e4ab8d561911f1b767b6b907e012e01fd7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36431e4 Rebuild (qt6)