Wp-calypso: DevDocs: Blocks page fails to load due to Theme block

[hoverduck]

Steps to reproduce

1. Starting at URL: https://wpcalypso.wordpress.com/devdocs/blocks

What I expected

The page to load

What happened instead

The page fails to load, with the following console errors:

vendor.eb47d18….js:22014 Uncaught TypeError: Cannot read property '__reactInternalInstance$9ot5pyshtb6' of null
    at Object.getClosestInstanceFromNode (vendor.eb47d18….js:22014)
    at findParent (vendor.eb47d18….js:36975)
    at handleTopLevelImpl (vendor.eb47d18….js:37004)
    at ReactDefaultBatchingStrategyTransaction.perform (vendor.eb47d18….js:20758)
    at Object.batchedUpdates (vendor.eb47d18….js:46155)
    at Object.batchedUpdates (vendor.eb47d18….js:38209)
    at dispatchEvent (vendor.eb47d18….js:37084)

I incrementally removed blocks from the /client/devdocs/design/blocks.jsx file and narrowed it down to the <Theme /> block, but I'm not exactly sure why. PR #13621 is the most recent change there - @eliorivero

Browser / OS version

Seen here in OSX Chrome, but observed across the board

Screenshot / Video

Context / Source

automated-testing #visdiff

[ockham]

Hmm, I can't seem to repro...

[hoverduck]

Me either...must've been a temporary thing. Glitch in the Matrix?

Closing.