User:Jellby/Sandbox/Joined

With direct transclusion

1. Item 1
   1. First subitem of item 1
2. Item 2
   1. First subitem of item 2
3. Item 2 (continued)
   1. Second subitem of item 2
4. Item 3
   1. First subitem of item 3

Desired

1. Item 1
   1. First subitem of item 1
2. Item 2
   1. First subitem of item 2
   2. Second subitem of item 2
3. Item 3
   1. First subitem of item 3