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baiwusanyu-c opened this issue May 17, 2023 · 0 comments · May be fixed by #8341
Open

Report an error when the component event name is once #8342

baiwusanyu-c opened this issue May 17, 2023 · 0 comments · May be fixed by #8341
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🔩 p2-edge-case

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Vue version

latest

Link to minimal reproduction

https://play.vuejs.org/#eNqFUM1KxDAQfpUhCG1BNvealhXxJLiggpdcajorwTQJybQiy767ky3Kspe95Zt8fzMHcR/jZplRtEJlk2wkyEhzBDf4z04Lylr02tsphkTwEKYI+xQmqDaygCKttDfBZ4LgDUIHdQNdD4PDRLUWZahFc6e9kmsA2zEgnKIbCBkBqOJVHgDbIuDgVbfOJJOUPFMwzPTjELIJEceerQvkH3Er/npdWWnEvfX4OFnK6lByamzhv28LS7Ajtz729bXyo13AuCFnNv9OQ4yYTgmluvqYiYKHrXHWfDHhBjmxrkpM1TDtdLTn3Ru8716eXpVc+auxZOfL1cXxF12okng=

Steps to reproduce

open the link

What is expected?

no error

What is actually happening?

get error：
Cannot read properties of undefined (reading 'toLowerCase')

System Info

No response

Any additional comments?

Issue exposed by #8334 and doesn't seem to be fixed by #8338
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fix(runtime-core): fix onOnce error baiwusanyu-c/bwsy-vue-core
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@edison1105 @baiwusanyu-c