Stack wiggle is gone or much reduced

[NeilFraser]

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Description

When disconnecting a stack of blocks, the stack should wiggle. This used to be clearly visible, as demonstrated here:
https://blockly.games/turtle?lang=en&level=10#qttj9u

However the current published version of Blockly either doesn't have a wiggle at all, or else the wiggle is tiny. This inconsistency smells like a race condition.

Reproduction steps

1. Go to https://blockly-demo.appspot.com/static/demos/code/index.html#u8h4fw
2. Pull the first 'if' statement out of the loop.

Stack trace

No response

Screenshots

No response

Browsers

Chrome desktop, Firefox desktop

[SantoshPisini]

Hello, I would like to give this issue a try!

[BeksOmega]

@SantoshPisini go for it! Let me know if you have any questions =)

[SantoshPisini]

@BeksOmega I'm unable to repro this issue locally(at /tests/playground.html). If there anything that I need to do to repo this?

[BeksOmega]

Hmm in my testing it seems to be inconsistent, sometimes the wiggliness is the same as on https://blockly.games/turtle?lang=en&level=10#qttj9u and sometimes it's much reduced. So I don't have any additional repo steps for you, but the inconsistency may mean there's a race condition making it hard for you to repro.