$ git clone -n https://src.fedoraproject.org/rpms/rust-vt100.git /var/lib/mock/f38-build-side-43-rust-devel-1402749-31192/root/chroot_tmpdir/scmroot/rust-vt100
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1402749-31192/root/chroot_tmpdir/scmroot/rust-vt100'...
$ git fetch origin 4ae27bf160f70848795d90441cbf4b9cc6329812:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-vt100
 * [new ref]         4ae27bf160f70848795d90441cbf4b9cc6329812 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ae27bf Update to 0.15.2