DataTree expansion freezes and crashes

[NicoN13]

I have been working with the tabulator data tree module quite a bit and for some reason I've been hitting an unexpected issue with "Maximum call stack size exceeded".

Below is a basic link which shows the issue.

https://anvil.works/build#clone:UBDP5EG7XAYO5LGT=A3H3X6KV4MD3NTBGNU4MUEDU|null

You can expand and contract Variant 6.
You can expand and contract Variant 7.
But when you expand Variant 6 and then while Variant 6 is expanded also try and expand Variant 7, the app crashes completely.

For the life of me, I can't figure out why. It's a small amount of data. It makes me think that it's a rendering issue but the message I receive is that of Maximum call stack size exceeded.

Thanks for looking into it!

[s-cork]

This looks like a bug in tabulator core
(If i run your app without the python wrapper I get the same issue)

are you able to reduce your example to the most minimal example that produces the error
(less data and fewer columns)
then i'll turn it into a minimal example and report the issue upstream

[s-cork]

Note - this only seems to be an issue in 3.x so if you revert to 2.x it should work

[NicoN13]

Sure thing, I'll reduce as far as possible and let you know. Thanks @s-cork

[NicoN13]

Data and example reduced. You can try and expand all 3 variants, and then it crashes. Same link as provided above.

[NicoN13]

Some additional playing around with it lead me to find that it partially has to do with the maxHeight setting. If you remove maxHeight from tabulator options, then this minimum example no longer crashes.

[s-cork]

good to know!
I've now created an issue upstream with a working example that crashes
see: olifolkerd/tabulator#4599