[Nexus][PVR] Prevent crash on saved search

[emveepee]

Description

Backport of PR# 21933

Motivation and context

How has this been tested?

What is the effect on users?

Fixes crash on search.

Screenshots (if appropriate):

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• None of the above (please explain below)

Checklist:

• My code follows the Code Guidelines of this project
• My change requires a change to the documentation, either Doxygen or wiki
• I have updated the documentation accordingly
• I have read the Contributing document
• I have added tests to cover my change
• All new and existing tests passed

[ksooo]

Thanks.

[ksooo]

Jenkins errors are unrelated.

00:20:52.047   SubtitleParserWebVTT.cpp
00:20:52.550 c1xx : error C3859: Failed to create virtual memory for PCH [C:\jenkins-workspace\workspace\WIN-64\kodi-build.x64\libkodi.vcxproj]
00:20:52.550 c1xx : message : the system returned code 1455: The paging file is too small for this operation to complete. [C:\jenkins-workspace\workspace\WIN-64\kodi-build.x64\libkodi.vcxproj]
00:20:52.550 c1xx : message : please visit https://aka.ms/pch-help for more details [C:\jenkins-workspace\workspace\WIN-64\kodi-build.x64\libkodi.vcxproj]
00:20:52.550 c1xx : fatal  error C1076: compiler limit: internal heap limit reached [C:\jenkins-workspace\workspace\WIN-64\kodi-build.x64\libkodi.vcxproj]