$ git clone -n https://src.fedoraproject.org/rpms/php.git /var/lib/mock/f41-build-1046809-19101/root/chroot_tmpdir/scmroot/php
Cloning into '/var/lib/mock/f41-build-1046809-19101/root/chroot_tmpdir/scmroot/php'...
$ git fetch origin 1d103474712ae30b7cd215b2f1861f28e859d5ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php
 * [new ref]         1d103474712ae30b7cd215b2f1861f28e859d5ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d10347 refresh keyring for new RMs