$ git clone -n https://src.fedoraproject.org/rpms/perl-mecab.git /var/lib/mock/f41-build-815814-149783/root/chroot_tmpdir/scmroot/perl-mecab
Cloning into '/var/lib/mock/f41-build-815814-149783/root/chroot_tmpdir/scmroot/perl-mecab'...
$ git fetch origin 324737df8089c0f34d9f9ba9114b9ec981b784ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-mecab
 * [new ref]         324737df8089c0f34d9f9ba9114b9ec981b784ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 324737d Perl 5.40 rebuild