Affects Version/s: 7.0.X, 7.1.X
Component/s: Dynamic Data Mapping
0) Use a vanilla bundle with the latest fix pack.
1) Create a structure with file structure.ftl attached
2) Create an empty template associated to the above structure
3) Create a web content with 2 translations (for example EN and IT)
4) Fill all fields in both languages
5) Create least 2 elements for the repeatable item.
6) Save the content as draft.
7) With default language selected (EN): remove one element from the repeatable item
Reproduced: 7.0.x,7.1.x /w ckeditor & alloyeditor