$ git clone -n https://src.fedoraproject.org/rpms/rust-xcursor.git /var/lib/mock/f42-build-61096265-6588810/root/chroot_tmpdir/scmroot/rust-xcursor
Cloning into '/var/lib/mock/f42-build-61096265-6588810/root/chroot_tmpdir/scmroot/rust-xcursor'...
$ git fetch origin 7489d980bac285ea9c0a55084de10bae1de18d25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-xcursor
 * [new ref]         7489d980bac285ea9c0a55084de10bae1de18d25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7489d98 Update to version 0.3.10; Fixes RHBZ#2374647