https://github.com/facebook/react/blob/49af88991c3a3e79e663e495458fad12d3162894/packages/react-devtools-shared/src/utils.js#L491
We have SuspenseList for the tree view but not when printing JSX.
When we fallthrough here we call getDisplayName with a symbol, because we assume that if it's not a string, then it's a function. We should be checking whether it is a function before calling getDisplayName.
Subsequently if we call getDisplayName with a symbol we get the error invalid value used as weak map key which messes up things after that. I think that's the actual cause of #19364
https://github.com/facebook/react/blob/49af88991c3a3e79e663e495458fad12d3162894/packages/react-devtools-shared/src/utils.js#L491
We have SuspenseList for the tree view but not when printing JSX.
When we fallthrough here we call getDisplayName with a symbol, because we assume that if it's not a string, then it's a function. We should be checking whether it is a function before calling getDisplayName.
Subsequently if we call getDisplayName with a symbol we get the error
invalid value used as weak map keywhich messes up things after that. I think that's the actual cause of #19364