The automatic breakpoints in the error are cool, but the debugger doesn't stop when the program is run again.
Take any code that generates an error that the debugger will catch. Now run it again with Control-R. Notice how two instances of the program are running. I would have thought the original instance would have been shut down if I run it again.
I'm concerned that it's not obvious that multiple copies are running and eating away at system resources.
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