$ git clone -n https://src.fedoraproject.org/forks/xanderlent/rpms/rust-cursive_core.git /var/lib/mock/f43-build-59098123-6571047/root/chroot_tmpdir/scmroot/rust-cursive_core
Cloning into '/var/lib/mock/f43-build-59098123-6571047/root/chroot_tmpdir/scmroot/rust-cursive_core'...
$ git fetch origin 893b2855490f0903637de67c1f96ab40f2f5f3a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/xanderlent/rpms/rust-cursive_core
 * [new ref]         893b2855490f0903637de67c1f96ab40f2f5f3a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 893b285 Relax version bound for compact_str