$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-WordDiff.git /var/lib/mock/f41-build-898901-16975/root/chroot_tmpdir/scmroot/perl-Text-WordDiff
Cloning into '/var/lib/mock/f41-build-898901-16975/root/chroot_tmpdir/scmroot/perl-Text-WordDiff'...
$ git fetch origin 92dc805db3f5264d296980fb7dfa8d059e8c5bca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-WordDiff
 * [new ref]         92dc805db3f5264d296980fb7dfa8d059e8c5bca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92dc805 Eliminate use of obsolete %patchN syntax (#2283636)