In the short tag view placeable elements in the target text are consecutively numbered independently from placeable numbering in the source text.

This leads to the same placeable having different numbers in source and target text in the following two cases:

1. If the order of placeables has been changed during translation.
2. If a non-breaking space or another character that is treated as a placeable is inserted in the translation.

For details see TRANSLATE-1440