$ git clone -n http://git.inferitos.ru/rpms/gstreamer1-libav /var/lib/mock/inferit-8_9-extras-build-34558-68567/root/chroot_tmpdir/scmroot/gstreamer1-libav
Cloning into '/var/lib/mock/inferit-8_9-extras-build-34558-68567/root/chroot_tmpdir/scmroot/gstreamer1-libav'...
$ git fetch origin changed/i8cr/gstreamer1-libav-1.16.1-1.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/gstreamer1-libav
 * [new tag]         changed/i8cr/gstreamer1-libav-1.16.1-1.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44f4b94 import gstreamer1-libav-1.16.1-1.el8