Fixing origin validation

[jywarren]

Re #1264

[codeclimate]

Code Climate has analyzed commit ba35047 and detected 0 issues on this pull request.

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[codecov]

Codecov Report

Merging #1269 into main will increase coverage by 0.47%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##             main    #1269      +/-   ##
==========================================
+ Coverage   72.40%   72.87%   +0.47%     
==========================================
  Files          40       40              
  Lines        1406     1401       -5     
==========================================
+ Hits         1018     1021       +3     
+ Misses        388      380       -8     

Impacted Files	Coverage Δ
lib/not_at_origin_validator.rb	85.71% <80.00%> (-14.29%)	⬇️
app/models/map.rb	93.54% <100.00%> (ø)
lib/exporter.rb	91.92% <0.00%> (-2.25%)	⬇️
app/controllers/maps_controller.rb	85.47% <0.00%> (+0.85%)	⬆️
app/channels/concurrent_editing_channel.rb	83.33% <0.00%> (+83.33%)	⬆️
app/channels/application_cable/channel.rb	100.00% <0.00%> (+100.00%)	⬆️