$ git clone -n https://src.fedoraproject.org/rpms/ghc-xml-hamlet.git /var/lib/mock/f40-build-777288-129331/root/chroot_tmpdir/scmroot/ghc-xml-hamlet
Cloning into '/var/lib/mock/f40-build-777288-129331/root/chroot_tmpdir/scmroot/ghc-xml-hamlet'...
$ git fetch origin 492a4151ffc8ee0de5cf20d9c3e12d8e34904acc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-xml-hamlet
 * [new ref]         492a4151ffc8ee0de5cf20d9c3e12d8e34904acc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 492a415 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild