Fixed isRecoveryAliveAndConnDead() to ensure connection be dead

[divang]

Fixed isRecoveryAliveAndConnDead() method to ensure connection should be dead.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.83%. Comparing base (c2a6ba4) to head (9c8f5f9).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2676   +/-   ##
=========================================
  Coverage     51.82%   51.83%           
- Complexity     4021     4025    +4     
=========================================
  Files           147      147           
  Lines         33800    33800           
  Branches       5650     5650           
=========================================
+ Hits          17518    17521    +3     
+ Misses        13811    13802    -9     
- Partials       2471     2477    +6     

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