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[1]
[1.1]
Extending <ref> tags more than one level deep is not allowed
[2.1]
[3]
[4]
- ^ Main ref 1
- ^ Sub ref 1
- ^ Cite error: Invalid
<ref> tag; no text was provided for refs named sub2; see Help:Cite errors/Cite error references no text ().
- ^ Sub ref level 3
- ^ Main ref 2
- ^ Main ref 3
