fix https://github.com/SafeExamBrowser/seb-win-refactoring/issues/490

[yolpsoftware]

fix #490

[codecov[bot]]

Codecov Report

Merging #494 (878ac29) into master (7590792) will decrease coverage by 0.03%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #494      +/-   ##
==========================================
- Coverage   57.26%   57.22%   -0.04%     
==========================================
  Files         277      277              
  Lines       12609    12609              
  Branches     1329     1329              
==========================================
- Hits         7220     7216       -4     
- Misses       5092     5095       +3     
- Partials      297      298       +1     

Impacted Files	Coverage Δ
SafeExamBrowser.Lockdown/AutoRestoreMechanism.cs	93.20% <0.00%> (-3.89%)	:arrow_down:

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