Hello,

I think there are some issues here with this changeset.

First, if a building have a name, it is better to keep the address on a node, that way we can guarantee proper rendering of both the name and the house number.  If you merge them, only the name will be rendered on most maps.

Most importantly: it looks like possible data corruption here.  You changed some addresses like 19A, 19B, 19C…, into 19, 19, 19 with units A, B, C…
https://www.openstreetmap.org/node/11578454290/history becomes https://www.openstreetmap.org/way/509832045

I suspect this is wrong because by doing so you are creating duplicate entries for house numbers.  I suspect you inadverently typed the letter in the small text box of iD… but this is only for post boxes appended to addresses (or flat numbers).  19C should stay 19C in the house number field.

What do you think?