Update mongoose to version 4.9.3 🚀

[greenkeeperio-bot]

Hello lovely humans,

mongoose just published its new version 4.9.3.

State	Update 🚀
Dependency	mongoose
New version	4.9.3
Type	dependency

This version is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of mongoose.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right?
Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project ✨

You rock!

🌴

---

The new version differs by 1210 commits .

• 86d6f73 chore: release 4.9.3
• 5eb8692 perf(populate): dont clone whole options every time
• f6dd89f docs(schematype): explain custom message with required function
• 12425b5 fix(populate): only apply refPath duplicate id optimization if not array
• ca59b9c test(populate): repro #5114
• 0a7be41 docs(schematypes): explain some subtleties with arrays
• 79fdf6a Merge pull request #5129 from monkbroc/patch-1
• fe20693 Merge pull request #5131 from krmannix/master
• f4d7ad6 fix(document): copy non-objects to _doc when init()
• cede3b4 test(document): repro #5111
• 04fb701 feat(document): add isDirectSelected() to minimize isSelected() changes
• 2d6bf66 test(document): repro #5063
• 0a03288 docs(discriminator): use message in discriminator docs re: #5113
• eee1f04 document.js fixes for functions prepended with $
• 65f6178 docs(schematype): explain how to use isAsync with validate()

There are 250 commits in total. See the full diff.

---

✨ Try the all new Greenkeeper GitHub Integration ✨
With Integrations first-class bot support landed on GitHub and we’ve rewritten Greenkeeper to take full advantage of it. Simpler setup, fewer pull-requests, faster than ever. Screencast Try it today. Free for private repositories during beta.