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How do I make many-to-many field optional in Django?

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What is the best (and safest) way to merge a Git branch into master?

...e following: git checkout master git rebase -i test Details for https://www.atlassian.com/git/tutorials/merging-vs-rebasing/the-golden-rule-of-rebasing appendix: if you are not sure about rebasing operations, please refer to: https://git-scm.com/book/en/v2/Git-Branching-Rebasing ...
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How do I know the current width of system scrollbar?

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Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'

...ne Stroustrup where he mentions some bits and pieces of IOStreams history: www2.research.att.com/~bs/01chinese.html (this link seems to be temporarily broken right now, but you can try Google's page cache) – stakx - no longer contributing May 2 '10 at 11:48 ...
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How to use JUnit and Hamcrest together?

...to let people know that as of December 2, 2014, the instructions at http://www.javacodegeeks.com/2014/03/how-to-test-dependencies-in-a-maven-project-junit-mockito-hamcrest-assertj.html worked for me. I did not use AssertJ though, just these: <dependency> <groupId>junit</groupId&gt...
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Redis key naming conventions?

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How to copy a selection to the OS X clipboard

... Aug 9, compiled Nov 11 2008 17:20:43) Included patches: 1-22 Compiled by _www@b77.apple.com Normal version without GUI. Features included (+) or not (-): ... -clientserver -clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments ... If it had been compiled with +clipboard, I'd be able to ...
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@Html.BeginForm Displaying “System.Web.Mvc.Html.MvcForm” on Page

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How do I partially update an object in MongoDB so the new object will overlay / merge with the exist

...otation key-value pairs. You could use for example this library: https://www.npmjs.com/package/mongo-dot-notation It has .flatten function that allows you to change object into flat set of properties that could be then given to $set modifier, without worries that any property of your existing DB ...
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Predicate in Java

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