$ git clone -n https://src.fedoraproject.org/rpms/freerdp.git /var/lib/mock/f39-build-1520497-35829/root/chroot_tmpdir/scmroot/freerdp
Cloning into '/var/lib/mock/f39-build-1520497-35829/root/chroot_tmpdir/scmroot/freerdp'...
$ git fetch origin 6a5a200a45f7927676d03539d934f4f133df1ef6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freerdp
 * [new ref]         6a5a200a45f7927676d03539d934f4f133df1ef6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a5a200 Disable FFmpeg support