$ git clone -n https://src.fedoraproject.org/rpms/php-hamcrest2.git /var/lib/mock/f41-build-1046831-19101/root/chroot_tmpdir/scmroot/php-hamcrest2
Cloning into '/var/lib/mock/f41-build-1046831-19101/root/chroot_tmpdir/scmroot/php-hamcrest2'...
$ git fetch origin fb8f39e4fa6d74080668fadcad5b726b1ad04b3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-hamcrest2
 * [new ref]         fb8f39e4fa6d74080668fadcad5b726b1ad04b3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb8f39e Eliminate use of obsolete %patchN syntax (#2283636)