$ git clone -n https://src.fedoraproject.org/rpms/cmark.git /var/lib/mock/f42-build-892020-191118/root/chroot_tmpdir/scmroot/cmark
Cloning into '/var/lib/mock/f42-build-892020-191118/root/chroot_tmpdir/scmroot/cmark'...
$ git fetch origin e37cfcd6053df6bf0264b2b62f730d0a556984a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cmark
 * [new ref]         e37cfcd6053df6bf0264b2b62f730d0a556984a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e37cfcd Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild