Title: #1109: Collect group membership without a size limit
If the # of group memberships exceeded the search size limit
then SizeLimitExceeded was raised. Being in too many groups
should not cause a *_show to fail.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1109/head:pr1109
git checkout pr1109