Missing compiler error when assigning a Variant to a RecordRef

[NKarolak]

1. Describe the bug
Since BC 26 / runtime 15.2, an implicit conversion between Record and RecordRef is supported.

The compiler now allows us also to assign a (record based) variant to RecRef:
RecRef := SomeVariant;
But this will result in a runtime error:
The expression Microsoft.Dynamics.Nav.Runtime.NavIndirectValue cannot be type-converted to a Microsoft.Dynamics.Nav.Runtime.NavRecordRef value.

2. To Reproduce
Steps to reproduce the behavior:

Add assignment like RecRef := SomeVariant;.
Then run the code in the web client.

3. Expected behavior
Error in the AL compiler for the RecRef := SomeVariant; line, no publish possible.

4. Actual behavior
Error in the web client, which is too late.

5. Versions:

• AL Language: v17.0.2273547
• Business Central: 27.1
  Internal work item: AB#634365

[NKarolak]

I've just learned that this error occurs only when the Variant is based on a Record variable. Other types (e.g. a Variant from a RecordRef) are still supported. So this may be the reason why the compiler is not able to detect unsupported scenarios.