Indesign 19.5

Create something like a manual numbered list with the first tab set as a decimal tab stop and any word in the first line that contains a ligature.. It can be as simple as "[tab]2. fi".

Expected result is the period would align where the decimal tab stop is set. This will happen up until a ligature is introduced.

Once a ligature is present on the first line, the decimal tab stop behaves like a left-justified tab stop instead.