$ git clone -n https://src.fedoraproject.org/rpms/ghc-fclabels.git /var/lib/mock/f42-build-3231213-41191/root/chroot_tmpdir/scmroot/ghc-fclabels
Cloning into '/var/lib/mock/f42-build-3231213-41191/root/chroot_tmpdir/scmroot/ghc-fclabels'...
$ git fetch origin f9956590c9ae426c232ad44a9c6a4fa6d5d30f33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-fclabels
 * [new ref]         f9956590c9ae426c232ad44a9c6a4fa6d5d30f33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f995659 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild