fix: improve multi-save hot-reload time #641
Merged
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Fixes #640
This PR improves the time when saving many times in a row during hot-reload.
Before:
A semaphore flag was waiting for the previous process to finish before starting the new one. This might make sense when we improve it so that instead of recompiling the whole app, it is done only for the specific file. Now, it does not make sense.
Now:
When a new process enters, it kills the previous one.