$ git clone -n https://src.fedoraproject.org/rpms/openshot.git /var/lib/mock/f40-build-1968463-25218/root/chroot_tmpdir/scmroot/openshot
Cloning into '/var/lib/mock/f40-build-1968463-25218/root/chroot_tmpdir/scmroot/openshot'...
$ git fetch origin 2f78a86d9d2cae73e11029ab23dce490f3742df9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openshot
 * [new ref]         2f78a86d9d2cae73e11029ab23dce490f3742df9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f78a86 Update openshot to 3.2.1 (#2294046)