$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-c.git /var/lib/mock/f40-build-2279728-55361/root/chroot_tmpdir/scmroot/ghc-language-c
Cloning into '/var/lib/mock/f40-build-2279728-55361/root/chroot_tmpdir/scmroot/ghc-language-c'...
$ git fetch origin fcec81022efff162f201434cb32eada8abd099da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-language-c
 * [new ref]         fcec81022efff162f201434cb32eada8abd099da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fcec810 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild