$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-DOM-XPath.git /var/lib/mock/f41-build-898968-16975/root/chroot_tmpdir/scmroot/perl-XML-DOM-XPath
Cloning into '/var/lib/mock/f41-build-898968-16975/root/chroot_tmpdir/scmroot/perl-XML-DOM-XPath'...
$ git fetch origin c072e2695200bd2755f981f7e9c3552b7c6ae94c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-DOM-XPath
 * [new ref]         c072e2695200bd2755f981f7e9c3552b7c6ae94c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c072e26 Eliminate use of obsolete %patchN syntax (#2283636)