$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk2-ImageView.git /var/lib/mock/f41-build-816696-150356/root/chroot_tmpdir/scmroot/perl-Gtk2-ImageView
Cloning into '/var/lib/mock/f41-build-816696-150356/root/chroot_tmpdir/scmroot/perl-Gtk2-ImageView'...
$ git fetch origin 2ba1ca9556066ed1fd1e69c440866e09f3ad2a5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk2-ImageView
 * [new ref]         2ba1ca9556066ed1fd1e69c440866e09f3ad2a5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ba1ca9 Perl 5.40 rebuild