#4263 Key signatures in temporary staves cause incorrect extra space in main staff

[Anonymous]

Originally created by: *anonymous

Originally created by: PhilEHol...@googlemail.com

Creating temporary staves as described in the NR to create ossias causes LilyPond to reserve extra space for their key signatures, even though it's not needed.  The attached file and image demonstrate the problem with line endings and whole measure rest positioning.

This can be worked around using

\once \set Score.explicitKeySignatureVisibility = ##(#f #f #t)

at the line end and

\override MultiMeasureRest.spacing-pair = #'(staff-bar . staff-bar)

for the whole measure rests.  However, this is suboptimal.

[Google Importer]

Originally posted by: k-ohara5...@oco.net

There are a few issues that could be helped by spacing the actual shape of the 'breakable' column containing the bar-lines and key signatures, etc. (rather than the full width of everything that could logically appear at the given bar, on any staff):
issue 448 issue 471 issue 1782 issue 4157