$ git clone -n https://src.fedoraproject.org/rpms/libopenshot.git /var/lib/mock/f39-build-1872215-42723/root/chroot_tmpdir/scmroot/libopenshot
Cloning into '/var/lib/mock/f39-build-1872215-42723/root/chroot_tmpdir/scmroot/libopenshot'...
$ git fetch origin 3a7841f8e3b407f1eadf6511bf5e0706d48a5af8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libopenshot
 * [new ref]         3a7841f8e3b407f1eadf6511bf5e0706d48a5af8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a7841f Update libopenshot to 0.3.2