[ms] fix two planner bugs: one occuring query such as X created_by U where X in a external source and U may come from an ldap source. The other being that when we've to merge input maps, we were modifying the same tree/solutions while a copy were needed. Also, ensure we add type restrictions, necessary for pyro source

msgid "read_perm"
msgstr ""

msgid "add_perm"
msgstr ""

msgid "update_perm"
msgstr ""

msgid "delete_perm"
msgstr ""