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Steps to reproduce
1. Create a file with filename ends with ~.
2. Wait for sync.
The file is upload to the server.
The file is not uploaded because "*~" is in the ignore list.
Client version: 2.3.1
Client operating system: Windows 10
The build-in list of ignore file pattern is convenient, it filters many unwanted files. However, in some cases, it also filtered some file useful, such as files ends with ~. Why not make the build-in list editable?