$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-LibXML-Devel-SetLineNumber.git /var/lib/mock/f41-build-816750-150376/root/chroot_tmpdir/scmroot/perl-XML-LibXML-Devel-SetLineNumber
Cloning into '/var/lib/mock/f41-build-816750-150376/root/chroot_tmpdir/scmroot/perl-XML-LibXML-Devel-SetLineNumber'...
$ git fetch origin 95fd3fa775ecd3d0677dd8be406bd3219c724fa6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-LibXML-Devel-SetLineNumber
 * [new ref]         95fd3fa775ecd3d0677dd8be406bd3219c724fa6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95fd3fa Perl 5.40 rebuild