Workaround for Node no longer exists

[Deltachaos]

The isset($attributes[$name]) sometimes also throws a notice like described in https://bugs.php.net/bug.php?id=75168

This introduces the workaround form #817 also in this place. We cannot use the isNull method here because of the todo mark in this method.

Q	A
Bug fix?	yes
New feature?	no
Doc updated	no
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets	#817
License	Apache-2.0

[goetas]

any way to test this?

[goetas]

Can you help here to reproduce the issue?

[Deltachaos]

I do not have the original case that caused this problem anymore

[Kalyse]

I can't provide a test case, but after applying the patch manually to my code, this resolves my issue also.

For some unknown reason to me, the issue was the visitProperty was receiving an empty SimpleXMLElement without a name. I have no idea how that is possible, but for obviousness,

if (isset($attributes[$name])) { fails, because of no name. That's why the warning is thrown. I can't provide a test case, no more than the author in 2018 could, but can confirm this does fix the underlying issue for me.

[goetas]

I understand that for some cases might be a problem, i'm wondering if this is a bug or an issue with the configurations in your project, and IMO the only way to figure out it is to find a way to reproduce the issue