$ git clone -n https://src.fedoraproject.org/rpms/netgen.git /var/lib/mock/f39-build-1461912-33289/root/chroot_tmpdir/scmroot/netgen
Cloning into '/var/lib/mock/f39-build-1461912-33289/root/chroot_tmpdir/scmroot/netgen'...
$ git fetch origin ba93364bdd4b2eb64eb6e96a3069dc851aaac3c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netgen
 * [new ref]         ba93364bdd4b2eb64eb6e96a3069dc851aaac3c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba93364 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild