$ git clone -n https://src.fedoraproject.org/rpms/ghc-MemoTrie.git /var/lib/mock/f42-build-877427-180226/root/chroot_tmpdir/scmroot/ghc-MemoTrie
Cloning into '/var/lib/mock/f42-build-877427-180226/root/chroot_tmpdir/scmroot/ghc-MemoTrie'...
$ git fetch origin a4506e87af33cbd376efaae6603c62e4b031d867:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-MemoTrie
 * [new ref]         a4506e87af33cbd376efaae6603c62e4b031d867 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4506e8 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild