Anchor/Alias crashs on accessing not overridden key/value

[hofbi]

My yaml file has the following structure

a_root: &root_anchor
  key1: value1
  key2: value2
b_child:
  <<: *root_anchor
  key2: value2_override

If I evaluate this file with yamllint.com or pyyaml this results into

a_root: 
  key1: value1
  key2: value2
b_child: 
  key1: value1
  key2: value2_override

But If I try to access the value of [b_child][key1] this result in a crash as key1 does not exit for b_child

This issue could be related to #312 and #110

[jbeder]

What do you mean "results in a crash"? Is it a segfault or an exception?

(I suspect that what you're seeing is that yaml-cpp doesn't support merge keys. See #41 )

[hofbi]

Yeah you are right. It's an exception

unknown file: Failure
FailureC++ exception with description "bad conversion" thrown in the test body.

And looks quite simmilar to #41. Within #41 PR #300 is linked which should fix it. But I am not sure if this will also fix this issue. I added a comment with a test suggestion to check if PR #300 will also fix this issue (see #300 (comment))

[jbeder]

Sounds good. I'm going to close this as a duplicate of #41.