Use completed over processed in reset_on_restart

[carmocca]

What does this PR do?

Requested by @tchaton

This was originally added in #8334

Does your PR introduce any breaking changes? If yes, please list them.

None

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[codecov]

Codecov Report

Merging #9656 (34bfbf8) into master (4bebf82) will increase coverage by 0%.
The diff coverage is 100%.

❗ Current head 34bfbf8 differs from pull request most recent head 5feaa54. Consider uploading reports for the commit 5feaa54 to get more accurate results

@@          Coverage Diff           @@
##           master   #9656   +/-   ##
======================================
  Coverage      93%     93%           
======================================
  Files         179     179           
  Lines       15305   15307    +2     
======================================
+ Hits        14197   14200    +3     
+ Misses       1108    1107    -1