Fix for insertBatch issue #888

[evil1]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	#888

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.88%. Comparing base (464ed7e) to head (359f0a2).

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #398   +/-   ##
=========================================
  Coverage     99.88%   99.88%           
  Complexity      274      274           
=========================================
  Files            33       33           
  Lines           844      844           
=========================================
  Hits            843      843           
  Misses            1        1           

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