app-misc/mc-4.7.3-r1 always appends the directory name to the end of the string in "to:" field in copy dialog (called on F5). In such case MC acts just like when the "Dive into subdir if exists" option is on. Reproducible: Always Steps to Reproduce: 1. emerge app-misc/mc-4.7.3-r1 2. select some directory and press 'F5' Actual Results: The name of the directory you are trying to copy is appended to the path in "to:" field. Expected Results: It shouldn't add the directory name, since this is the "dive into subdir if exists" option 's job to copy the directory into the one with the same name.
fixed in mc-4.7.3-r2 using upstream patch (ticket @ URL). thanks for reporting :)