Bugfix ignore appear

[cmalinmayor]

@funkey There were two issues with the previous implementation.

• Previously we skipped the appear cost if the attribute was present and False, instead of True as the name implied and the docstring stated.
• I also had to add the dummy variable with weight of 0.0 to avoid an ilpy error - let me know if that shouldn't be necessary, but I think it is?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.58%. Comparing base (951efe7) to head (56c6636).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #113   +/-   ##
=======================================
  Coverage   92.57%   92.58%           
=======================================
  Files          31       31           
  Lines         795      796    +1     
=======================================
+ Hits          736      737    +1     
  Misses         59       59           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[cmalinmayor]

Okay after a closer look, my first bullet point above was clearly incorrect. I'm still not convinced that the behavior we see using the ignore appear cost is correct, though. It is skipping a lot of points in the first frame even with the ignore attribute set.