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Are there any downsides to enabling git rerere?

I've read various things about git's rerere feature, and I'm considering enabling it. But I haven't seen anyone mention any possible problems that could arise while using it. I have to assume there is a downside, or it would probably be enabled by default. So is there any downside to enabling rerere...
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Match linebreaks - \n or \r\n?

While writing this answer , I had to match exclusively on linebreaks instead of using the s -flag ( dotall - dot matches linebreaks). ...
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Input and output numpy arrays to h5py

I have a Python code whose output is a sized matrix, whose entries are all of the type float . If I save it with the extension .dat the file size is of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I ...
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How can I call a custom Django manage.py command directly from a test driver?

I want to write a unit test for a Django manage.py command that does a backend operation on a database table. How would I invoke the management command directly from code? ...
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const vs constexpr on variables

Is there a difference between the following definitions? 4 Answers 4 ...
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What does Class mean in Java?

My question is as above. Sorry, it's probably a duplicate but I couldn't find an example with the <?> on the end. 6...
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What is the difference between JavaConverters and JavaConversions in Scala?

In scala.collection , there are two very similar objects JavaConversions and JavaConverters . 4 Answers ...
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How do I choose between Semaphore and SemaphoreSlim?

Their public interfaces appear similar. The documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaph...
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How do I pass extra arguments to a Python decorator?

I have a decorator like below. 5 Answers 5 ...
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Is the list of Python reserved words and builtins available in a library?

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