Regression in interaction between v-slots and v-if

[patrickas]

Version

2.6.8

Reproduction link

http://jsfiddle.net/6bk180pn/2/

Steps to reproduce

The fiddle contains three parts.
Part 1 is the old working syntax.
Part 2 is the commented out new syntax that does not work anymore, un-commenting this part triggers the error.
Part 3 is a workaround using the new syntax but that requires copying part of the code of the component to the parent so it works.

What is expected?

template is only included when the condition is true

What is actually happening?

syntax error

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This seems like a regression especially since the old functionality will be discontinued in future releases.

[LinusBorg]

I edited the example a bit to make the effect a bit more transparent.

http://jsfiddle.net/Linusborg/37bkj2qh/

Seems that indeed we have an issue when it comes to default slots in this specific scenario.

[patrickas]

How can I re-open this case? I just tried the latest 2.6.9 that should contains a fix but I am still getting the same error.

After reading the code for the fix, it seems that it only helps in cases where the condition in the if statement is unrelated to the slot props.

But the cases such as the example given in the original bug report the same error is still happening.

[LinusBorg]

Opern a new issue please.

[yyx990803]

Note on the behavior difference between old and new syntax: #9725 (comment)