Start Bar breaks on ties

[dgriessler]

Your environment

• Version used: (master branch)
  develop branch
• Platform used: JavaScript or C#
  JavaScript
• Rendering engine used: SVG (default), HTML5 or GDI
  SVG
• Browser Name and Version:
  Chrome 79.0.3945.130
• Operating System and version (desktop or mobile):
  Windows 10 Desktop
• Link to your project:
  https://music-assistant-fit.web.app/

Expected Results

When you specify a start bar, AlphaTab should be able to render starting at that bar.

Observed Results

When you try and render a bar which has a tie to a previous measure, AlphaTab throws an error:
Uncaught Cannot cast null to {
name : [alphaTab,rendering,ScoreBarRenderer],
paintSingleBar : ,
StaffId : score,
SharpKsSteps : 1,4,0,3,6,2,5,
FlatKsSteps : 5,2,6,3,7,4,8,
LineSpacing : 8,
StemWidth : 1.3
}

Steps to Reproduce (for bugs)

1. Create some sheet music with a tie between measures
2. Try and render the second measure which has a tie to the previous measure

Possible Solution

Either disallow starting at measures with a tie to a preceding measure thereby reducing functionality or ignore the tie in the AlphaTex and render as expected without throwing the error.

[Danielku15]

fixed in 0.9.6.288 😉