Handle ActiveRecord caching properly

[ArtOfCode-]

Closes #1738.

[codecov]

Codecov Report

❌ Patch coverage is 97.67442% with 1 line in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@16a4657). Learn more about missing BASE report.

⚠️ Current head 82598a3 differs from pull request most recent head 5a2f36a

Please upload reports for the commit 5a2f36a to get more accurate results.

Files with missing lines	Patch %	Lines
app/models/post_type.rb	66.66%	1 Missing ⚠️

Additional details and impacted files

Components	Coverage Δ
controllers	69.90% <100.00%> (?)
helpers	81.82% <ø> (?)
jobs	60.00% <ø> (?)
models	86.12% <80.00%> (?)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Oaphi]

Note for other reviewers (assuming there will be any except me): be careful when switching back & forth between this PR and others, cache must be cleaned every time you switch away from this one (it's expected, just a heads up).

[Oaphi]

LGTM