$ git clone -n https://src.fedoraproject.org/rpms/qgnomeplatform.git /var/lib/mock/f40-build-1269675-23103/root/chroot_tmpdir/scmroot/qgnomeplatform
Cloning into '/var/lib/mock/f40-build-1269675-23103/root/chroot_tmpdir/scmroot/qgnomeplatform'...
$ git fetch origin 8be802a62844e8c6767ed8f17b16d0438b78e2f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qgnomeplatform
 * [new ref]         8be802a62844e8c6767ed8f17b16d0438b78e2f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8be802a Rebuild (qt5)