$ git clone -n https://src.fedoraproject.org/rpms/gd.git /var/lib/mock/f39-build-2027440-47170/root/chroot_tmpdir/scmroot/gd
Cloning into '/var/lib/mock/f39-build-2027440-47170/root/chroot_tmpdir/scmroot/gd'...
$ git fetch origin e6c68b14f1f69dc44243b70be0849fb35d72ede1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gd
 * [new ref]         e6c68b14f1f69dc44243b70be0849fb35d72ede1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6c68b1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild