$ git clone -n https://src.fedoraproject.org/rpms/ghc-cautious-file.git /var/lib/mock/f40-build-775986-128553/root/chroot_tmpdir/scmroot/ghc-cautious-file
Cloning into '/var/lib/mock/f40-build-775986-128553/root/chroot_tmpdir/scmroot/ghc-cautious-file'...
$ git fetch origin fde2d153a5b132b3539cb2db8cf84ded5e70987c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cautious-file
 * [new ref]         fde2d153a5b132b3539cb2db8cf84ded5e70987c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fde2d15 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild