Started draft for bug fix

[nilseling]

This is the start of the bug fix to address #85

This needs to be properly tested and adjusted. I already noticed now that when setting a gate that contains 0 cells leads to the clearing of all subsequent gates. This has not been the behaviour before the fix.

[codecov]

Codecov Report

Attention: 46 lines in your changes are missing coverage. Please review.

Comparison is base (7ba413f) 87.31% compared to head (adaae45) 87.06%.

Files	Patch %	Lines
R/server-utils.R	9.80%	46 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            devel      #86      +/-   ##
==========================================
- Coverage   87.31%   87.06%   -0.25%     
==========================================
  Files          18       18              
  Lines        2751     2761      +10     
==========================================
+ Hits         2402     2404       +2     
- Misses        349      357       +8     

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[nilseling]

I introduced a few more fixes:

1. when the assay changed, the first gate was not erased (now fixed)
2. There was a strange bug that when the first marker of a gate was set to empty, the gate was not erased. For safety reasons I have now added that all gates and objects are erased when any marker changes.

@lassedochreden, @SchulzDan please test this in detail when you get the chance. The design choices and expectations are a bit complex to handle alone.

[nilseling]

Bzw, the build issues on devel seem to be slang related; see Bioc developers forum slack

[SchulzDan]

Hi, I just installed version 1.15.3 and it seems that empty gates still propagate the previous gate into the downloaded sce.