[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

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[system]

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db-driver   = sqlite

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db-host     = 

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adapter     = native

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db-name     = tmpdb-extern

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db-encoding = UTF-8

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db-user     = admin

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db-password = gingkow

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[admin]

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login = admin

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password = gingkow