$ git clone -n https://src.fedoraproject.org/rpms/php-splitbrain-php-jsstrip.git /var/lib/mock/f38-build-side-42-init-devel-824009-28360/root/chroot_tmpdir/scmroot/php-splitbrain-php-jsstrip
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-824009-28360/root/chroot_tmpdir/scmroot/php-splitbrain-php-jsstrip'...
$ git fetch origin 0ba12f004863dcd77eb88737708f3cd6b9fc1e77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-splitbrain-php-jsstrip
 * [new ref]         0ba12f004863dcd77eb88737708f3cd6b9fc1e77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ba12f0 Compress sources to .tar.gz instead of .zip