BreakpointEvent causes all other breakpoints in file to be cleared

[daviwil]

• VSCode Version: 1.11.1
• OS Version: Windows 10 Anniversary

Steps to Reproduce:

1. User starts debugging a file which spawns a debug adapter
2. User clicks breakpoints in the gutter of that file
3. Something happens in the debug adapter causing a BreakpointEvent to be sent back to the debugger client
4. New breakpoint icon appears on the appropriate line, all other breakpoint icons disappear

I've tried this with reason set to new and changed, same result.

[isidorn]

@daviwil I have looked into the code and am puzzled as to how this can happen.

• Can you double check if you still see this with vscode insiders?
• Do you nicely send the id of the brekapoint in the event?
• Could you actually post the json object you send here?
• Are you sure there is no other communication between vscode and your debug adapter going on at that moment?

Since looking at the code for the brekapoint event it seems impossible that other breakpoints disappear.

[isidorn]

Ping @daviwil to provide additional information

[isidorn]

Closing until more data is provided