$ git clone -n https://src.fedoraproject.org/rpms/rust-mockito.git /var/lib/mock/f38-build-side-43-rust-devel-1398317-31089/root/chroot_tmpdir/scmroot/rust-mockito
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1398317-31089/root/chroot_tmpdir/scmroot/rust-mockito'...
$ git fetch origin 8920d7fff69725db3f979e07e3206a295059cbf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mockito
 * [new ref]         8920d7fff69725db3f979e07e3206a295059cbf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8920d7f Update to version 1.2.0; Fixes RHBZ#2238904