$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk2-SourceView2.git /var/lib/mock/f45-build-23851-599/root/chroot_tmpdir/scmroot/perl-Gtk2-SourceView2
Cloning into '/var/lib/mock/f45-build-23851-599/root/chroot_tmpdir/scmroot/perl-Gtk2-SourceView2'...
$ git fetch origin 7fc2e555bf74c933d6218ea044fd4787681e4807:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk2-SourceView2
 * [new ref]         7fc2e555bf74c933d6218ea044fd4787681e4807 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fc2e55 Perl 5.44 rebuild