$ git clone -n https://src.fedoraproject.org/rpms/ghc-dec.git /var/lib/mock/f40-build-776337-128763/root/chroot_tmpdir/scmroot/ghc-dec
Cloning into '/var/lib/mock/f40-build-776337-128763/root/chroot_tmpdir/scmroot/ghc-dec'...
$ git fetch origin 27b9744a8419534298987baded4a74b341e94bd7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-dec
 * [new ref]         27b9744a8419534298987baded4a74b341e94bd7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27b9744 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild