$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Metadata-Changes.git /var/lib/mock/f41-build-691974-12735/root/chroot_tmpdir/scmroot/perl-Module-Metadata-Changes
Cloning into '/var/lib/mock/f41-build-691974-12735/root/chroot_tmpdir/scmroot/perl-Module-Metadata-Changes'...
$ git fetch origin 3ac4e57f0dffe11c8227de832ead63388dfe7ad3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Metadata-Changes
 * [new ref]         3ac4e57f0dffe11c8227de832ead63388dfe7ad3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ac4e57 Eliminate use of obsolete %patchN syntax (#2283636)