2.1.0 behaviour:


__git foo
    __package git --state present

__git bar
    __package git --state present


require="__git/foo" git bar:

    __git bar
        __git foo
            __package git --state present
        __package git --state present
            __git foo
                __package git --state present

    -> detects circular dependency


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__package abc
    __package_apt abc

__sometype def
    __package abc
        __package_apt abc


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Change proposal:

Each object only depends on the objects it directly requires, tree build to
ensure correct running behaviour:


__git bar
    __git foo
    __package git --state present

__git foo
    __package git --state present

Order:

1)
    __package/git (leaf node!)

2)
    __git/foo (new leaf node!)

3)
    __git/bar (new leaf node!)


For __package:

__sometype def
    __package abc

__package abc
    __package_apt abc

1) __package_apt/abc (leaf node)

2) __package/abc (new leaf node)

3) __sometype/def (new leaf node)