$ git clone -n https://src.fedoraproject.org/rpms/openh264.git /var/lib/mock/f39-build-1639162-40101/root/chroot_tmpdir/scmroot/openh264
Cloning into '/var/lib/mock/f39-build-1639162-40101/root/chroot_tmpdir/scmroot/openh264'...
$ git fetch origin 93e5800314a4f295bf6abdea671fd7df9e3f5b8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openh264
 * [new ref]         93e5800314a4f295bf6abdea671fd7df9e3f5b8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93e5800 Update gstreamer plugin to 1.22.1