fix(editors): fix couple of small editor bugs found

[ghiscoding]

No description provided.

[codecov]

Codecov Report

Merging #563 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            master      #563    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          148       148            
  Lines         9818      9816     -2     
  Branches      3470      3327   -143     
==========================================
- Hits          9818      9816     -2     

Impacted Files	Coverage Δ
...pp/modules/angular-slickgrid/editors/dateEditor.ts	100.00% <ø> (ø)
...es/angular-slickgrid/editors/autoCompleteEditor.ts	100.00% <100.00%> (ø)
.../modules/angular-slickgrid/editors/selectEditor.ts	100.00% <100.00%> (ø)
.../modules/angular-slickgrid/filters/selectFilter.ts	100.00% <100.00%> (ø)

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