User:Bradv/sandbox/wt

1. Using wt inside lang

"Land of the Thai" ({{lang-th|{{wt|th|ไทย}}}})

"Land of the Thai" (Thai: ไทย)

2. Using wikt-lang inside lang

"Land of the Thai" ({{lang-th|{{wikt-lang|th|ไทย}}}})

"Land of the Thai" (Thai: ไทย)

3. Using just wikt-lang

"Land of the Thai" ({{wikt-lang|th|ไทย}})

"Land of the Thai" (ไทย)

4. Using just lang

"Land of the Thai" ({{lang-th|ไทย}})

"Land of the Thai" (Thai: ไทย)

5. Using just wt

"Land of the Thai" ({{wt|th|ไทย}})

"Land of the Thai" (ไทย)

Summary

1. works fine
2. works fine, but has an extra nested tag in the output html
3. doesn't provide the language link
4. doesn't provide the link to wiktionary
5. doesn't provide the language link, or the lang="" tag in the output html

Solution #1

Redirect wt to wikt-lang to fix use case 5, and replace all the instances of either wt or wikt-lang nested inside of lang with a new template which duplicates the current functionality of wt

Solution #2

Keep the templates as they are, but replace all naked transclusions of wt with wikt-lang, and all nested transclusions of wikt-lang with wt

Solution #3

Change Module:Lang to avoid wrapping elements that already have lang="" attributes