Bug Report: Downloaded Episodes Import Service gets confused by a filename with a colon symbol in it

Sonarr version (exact version): 4.0.1.929
Mono version (if Sonarr is not running on Windows): not quite sure, System/About reports .NET: Yes (6.0.13)
OS: Docker container linuxserver.io running on Ubuntu 22.04.3 LTS
Debug logs:
Description of issue:

Sonarr has created a download of a file with the following name:

Frieren: Beyond Journey's End E22 Future Enemies 1080p B-Global WEB-DL x264 [Japanese] (AAC 2.0) MSubs_ToonsHub_.mkv

After the download was complete, Sonarr has failed to import the file with the following error appearing in the logs:

[Error] DownloadedEpisodesImportService: Import failed, path does not exist or is not accessible by Sonarr: /downloads/complete/Frieren_ Beyond Journey's End E22 Future Enemies 1080p B-Global WEB-DL x264 [Japanese] (AAC 2.0) MSubs_ToonsHub_.mkv. Ensure the path exists and the user running Sonarr has the correct permissions to access this file/folder

Notice how it’s looking for a file with a different name, replacing : symbol with _ symbol.

It seems that importer is making a wrong assumption about colon not being a symbol that can appear in a filename.