$ git clone -n https://src.fedoraproject.org/rpms/gstreamer1-rtsp-server.git /var/lib/mock/f41-build-842789-161709/root/chroot_tmpdir/scmroot/gstreamer1-rtsp-server
Cloning into '/var/lib/mock/f41-build-842789-161709/root/chroot_tmpdir/scmroot/gstreamer1-rtsp-server'...
$ git fetch origin 7349873a83318cd87c05f66250db83d4c79742ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gstreamer1-rtsp-server
 * [new ref]         7349873a83318cd87c05f66250db83d4c79742ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7349873 1.24.6