Fix soft bricking app when closing nested modals using escape key

[aptkingston]

Description

This fixes an issue where using the escape key to close modals when modals are nested inside each other lead to a soft bricking of the app, forcing a refresh.

Fixes #4660.

Merging into develop rather than master as not very high priority.

[codecov-commenter]

Codecov Report

Merging #4734 (c4ebc85) into develop (f37a4ee) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #4734   +/-   ##
========================================
  Coverage    67.91%   67.91%           
========================================
  Files          144      144           
  Lines         4922     4922           
  Branches       761      761           
========================================
  Hits          3343     3343           
  Misses        1105     1105           
  Partials       474      474           

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