on copy of a folder if the name end with the .xx the additional "(copy)" in the new name is added before the last "."
As the title, if the name of a folder end for .xx for example "software-1.2.20" on copy the new generated name become "software-1.2 (copy).20", I would expect "software-1.2.20 (copy)"
Reproduced on 3.26.0