FieldNotFound when field is available

[andygrove]

Describe the bug

Errors like this are quite confusing. The field is not found but is then listed as being available.

Error: SchemaError(FieldNotFound { qualifier: None, name: "actual_result.part.p_brand", 
valid_fields: Some(["actual_result.part.p_brand", ...

To Reproduce

• create a field with no qualifier and name "a.b" then lookup qualifier="a", name="b"
• create a field with qualifier="a", name = "b", then lookup with no qualifier and name = "a.b"

Expected behavior
Two choices:

• Should find a match regardless of inconsistencies of format
• Improve error message to make it clear how these names are formed

Additional context