[josephfusco]

With keepalive off the transport owns user-{id} and editor-{id} outright, so one that removes them per tab instead of per person takes the user offline, and the editor row's locked flag, which nothing in this plugin reads, stops following core's lock.

Related: #901

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.52%. Comparing base (1877880) to head (b98337b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #904   +/-   ##
=========================================
  Coverage     97.52%   97.52%           
  Complexity      269      269           
=========================================
  Files            30       30           
  Lines          4399     4403    +4     
=========================================
+ Hits           4290     4294    +4     
  Misses          109      109           

Flag	Coverage Δ
multisite	97.69% <100.00%> (+<0.01%)	⬆️
phpunit	77.69% <100.00%> (+0.02%)	⬆️

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