File renaming - duplicate filenames 4.5 beta 2

Hello nabocorp (I hope your friends use your real name :) ),
Something I noticed in 4.5 beta 2:
I use the following pattern for file renaming:
%Y%m%d %{num:3} %P.%{ext}
In previous versions the {num} would automatically increment. Now I get the following message:
The options you have chosen yield to duplicate filenames. Do you want cam2pc to automatically avoid duplicates?
When I answer 'yes', cam2pc creates files with the same number and adds an incremental number between brackets:
20041129 005 Test (5).jpg
20041129 005 Test (6).jpg
It looks as if the {num} is only incremented by one for each newly started download.
It used to work perfectly in previous versions and I did not change the format.
Kind regards,
Marc
Something I noticed in 4.5 beta 2:
I use the following pattern for file renaming:
%Y%m%d %{num:3} %P.%{ext}
In previous versions the {num} would automatically increment. Now I get the following message:
The options you have chosen yield to duplicate filenames. Do you want cam2pc to automatically avoid duplicates?
When I answer 'yes', cam2pc creates files with the same number and adds an incremental number between brackets:
20041129 005 Test (5).jpg
20041129 005 Test (6).jpg
It looks as if the {num} is only incremented by one for each newly started download.
It used to work perfectly in previous versions and I did not change the format.
Kind regards,
Marc