Wrong tag numbering on tags swapped position from source to target

If we import the following pretranslated segment:

Source: ich <b>bin</b> ein <i>Haus</i>
Target: a <i>house</i> I <b>am</b>

this produces the following short tag numbers:

Source: ich <1>bin</1> ein <2>Haus</2>
Target: a <1>house</1> I <2>am</2>

This is not correct, since the numbering should be:

Target: a <2>house</2> I <1>am</1>

In the SDLXLIFF this is also the case, but there we leave it as it is. Same for CSV, since there is no possibility to map the tags there.
For XLF we can map the tags by ID, so we can reproduce the correct tag numbering.
Da aber unser SDLXLIFF Import das ebenso "falsch" macht, würde ich das
nun beim XLF Import ebenso "falsch" lassen.