IntelliSense opens in lambda mode before assignment

[SLaks]

Version Used: 2017 RC

class X {
	Action x;
	X() {
		x. = x;
	}
}

Typing the . (as opposed to pressing Ctrl+Space after it) will incorrectly open IntelliSense in lambda mode.

[SLaks]

Much simpler repro (I assume this is the same bug):

class C {
	Action a = Task.
}

Here too, typing the . (as opposed to pressing Ctrl+Space after it) will incorrectly open IntelliSense in lambda mode.