$ git clone -n https://src.fedoraproject.org/rpms/ghc-tasty-rerun.git /var/lib/mock/f45-build-10829-424/root/chroot_tmpdir/scmroot/ghc-tasty-rerun
Cloning into '/var/lib/mock/f45-build-10829-424/root/chroot_tmpdir/scmroot/ghc-tasty-rerun'...
$ git fetch origin ec3a5955221ab36de5877a996409a8005f9e4492:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-tasty-rerun
 * [new ref]         ec3a5955221ab36de5877a996409a8005f9e4492 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec3a595 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild