$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-docker.git /var/lib/mock/f40-build-776734-129081/root/chroot_tmpdir/scmroot/ghc-language-docker
Cloning into '/var/lib/mock/f40-build-776734-129081/root/chroot_tmpdir/scmroot/ghc-language-docker'...
$ git fetch origin 30ffc758fcb0b959a32d16e98811779621ae7bc2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-language-docker
 * [new ref]         30ffc758fcb0b959a32d16e98811779621ae7bc2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30ffc75 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild