Another problem with centerSolitaryPaperColumn

[Víctor]

Dear David and all Lilyponders:

I keep using the latest update of your centerSolitaryPaperColumn 
snippet, and have spotted another glitch. I hope it is not much trouble 
if I ask you to give it a look again: In the attachment you can see that 
ties in measures 4 and 8 are missaligned in the first staff, while the 
second staff has no problem. I belive it is necesary to break the system 
manually to reproduce the bug, otherwise the ties seem to be correctly 
placed.

Thanks and regards,
Víctor.

centerPaper.ly
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centerPaper.png
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