[Interest] Looks like a bug to me.

[william.crocker at analog.com]

>
> For the second one, consider that after arg(d) is executed, the input string to arg(a) is "B: %41".  Since 41 is now "the lowest numbered place marker", "XXX" gets substituted.  It is easy to mistakenly think that QString magically treats multiple .args as somehow being indexed.  I think the documentation for QString.arg should warn about your example, and the case when substituted strings contain %<number>.
>

Yes. I see now.
Maybe a little too convenient.
Thanks.

Bill