$ git clone -n https://src.fedoraproject.org/rpms/uxplay.git /var/lib/mock/f39-build-2119456-50733/root/chroot_tmpdir/scmroot/uxplay
Cloning into '/var/lib/mock/f39-build-2119456-50733/root/chroot_tmpdir/scmroot/uxplay'...
$ git fetch origin 68772536f997b126a7444a9b75b19fb0b77344d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/uxplay
 * [new ref]         68772536f997b126a7444a9b75b19fb0b77344d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6877253 Rebuild for llhttp SONAME bump