$ git clone -n https://src.fedoraproject.org/rpms/ghc-cairo.git /var/lib/mock/f42-build-877526-180226/root/chroot_tmpdir/scmroot/ghc-cairo
Cloning into '/var/lib/mock/f42-build-877526-180226/root/chroot_tmpdir/scmroot/ghc-cairo'...
$ git fetch origin c023fbc808b0480afdc2e80dfbf845a466db3cff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cairo
 * [new ref]         c023fbc808b0480afdc2e80dfbf845a466db3cff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c023fbc Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild