[ISSUE] Don't give RepeatTieColumn a `cause' event

[David Kastrup]

Type: Enhancement
Status: Started
Owner: address@hidden
Patch: new
Summary:
Don't give RepeatTieColumn a `cause' event

Rationale: the cause is used for point-and-click information and for
stuff like \parenthesize, and a RepeatTieColumn does not have metrics
that would be useful for that.  In particular, this causes code like

{ c'1-\parenthesize\repeatTie }

to compile without spurious parens and error messages.


Rietveld issue: 266000043 (https://codereview.appspot.com/266000043)

-- 
David Kastrup