api: fix crash when changing settings of an on-demand source that is idle (#3246)

[aler9]

Fixes #3246

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 54.74%. Comparing base (1c135fb) to head (ade077f).

Files	Patch %	Lines
internal/core/static_source_handler.go	0.00%	8 Missing ⚠️
internal/core/path.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3249      +/-   ##
==========================================
- Coverage   54.78%   54.74%   -0.05%     
==========================================
  Files         153      153              
  Lines       18282    18288       +6     
==========================================
- Hits        10016    10011       -5     
- Misses       7450     7461      +11     
  Partials      816      816              

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[github-actions]

This issue is mentioned in release v1.8.0 🚀
Check out the entire changelog by clicking here