Related outputs of a rule rectangle (e.g., top affects height & bottom) need to be invalidated regardless of whether the output itself already is invalid.
Fixes a problem where accessing only a certain output of a rule rectangle wouldn't cause the relevant value updates to occur (DocumentWidget inside a popup).
Fixed|libdeng2|RuleRectangle: Rule invalidation issue
Related outputs of a rule rectangle (e.g., top affects height & bottom)
need to be invalidated regardless of whether the output itself already
is invalid.
Fixes a problem where accessing only a certain output of a rule
rectangle wouldn't cause the relevant value updates to occur
(DocumentWidget inside a popup).