$ git clone -n https://src.fedoraproject.org/rpms/dtkcore.git /var/lib/mock/f40-build-780035-130658/root/chroot_tmpdir/scmroot/dtkcore
Cloning into '/var/lib/mock/f40-build-780035-130658/root/chroot_tmpdir/scmroot/dtkcore'...
$ git fetch origin fe2b827d76d6b84cd603e8fe34be424119722ae8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dtkcore
 * [new ref]         fe2b827d76d6b84cd603e8fe34be424119722ae8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe2b827 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild