CMake buildPresets jobs flag and parallel settings inconsistent

[kennon-mckeever]

Brief Issue Summary

When building using a cmake build preset, if I specify "jobs": 0 in my build preset, I get inconsistent parallelism between the command line and CMakeTools build command/button. The command line cmake --build --preset=debug will compile in parallel while the CMakeTools build command will compile sequentially. This happens regardless of the cmake.parallelJobs setting (I've tried 0 and 8).

CMake Tools Diagnostics

Debug Log

Additional Information

I am using make and g++ on linux.

I also noticed that if the "jobs" line in the cmake build preset is removed, the cmake.parallelJobs setting also has no influence - I would expect this setting to be the default if a build preset doesn't specify anything.

[Yingzi1234]

@kennon-mckeever Can this problem be reproduced for all programs? Or only the specified items can be reproduced, could you provide us with your reproduced items?