$ git clone -n https://src.fedoraproject.org/rpms/libchardet.git /var/lib/mock/f41-build-742752-13326/root/chroot_tmpdir/scmroot/libchardet
Cloning into '/var/lib/mock/f41-build-742752-13326/root/chroot_tmpdir/scmroot/libchardet'...
$ git fetch origin a5ed196a0fbd7844ac63347ef1f6120fd70670cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libchardet
 * [new ref]         a5ed196a0fbd7844ac63347ef1f6120fd70670cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5ed196 Eliminate use of obsolete %patchN syntax (#2283636)