$ git clone -n https://src.fedoraproject.org/rpms/php-symfony4.git /var/lib/mock/f41-build-1046897-19101/root/chroot_tmpdir/scmroot/php-symfony4
Cloning into '/var/lib/mock/f41-build-1046897-19101/root/chroot_tmpdir/scmroot/php-symfony4'...
$ git fetch origin a21202d3fdfb0e7d01c0a2a40ddbbe1c3439db35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-symfony4
 * [new ref]         a21202d3fdfb0e7d01c0a2a40ddbbe1c3439db35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a21202d Eliminate use of obsolete %patchN syntax (#2283636)