$ git clone -n https://src.fedoraproject.org/rpms/perl-Template-Plugin-JavaScript.git /var/lib/mock/f45-build-26497-617/root/chroot_tmpdir/scmroot/perl-Template-Plugin-JavaScript
Cloning into '/var/lib/mock/f45-build-26497-617/root/chroot_tmpdir/scmroot/perl-Template-Plugin-JavaScript'...
$ git fetch origin 5c8b8bcbfa621b150dcaf1b8d372b780d4a9e454:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Template-Plugin-JavaScript
 * [new ref]         5c8b8bcbfa621b150dcaf1b8d372b780d4a9e454 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c8b8bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild