Tar: file changed as we read it

Problem

When creating a tar file named incr.tgz, tar exits with the error message:

tar: Error exit delayed from previous errors

Moving up through the list of files, I see this error:

./incr.tgz: file changed as we read it

tar (GNU tar) 1.13.25

As it was the tar file (incr.tgz)self – changing while being created – specify tar to exclude this specific file by using the `--exclude' option.
Use the `--ignore-failed-read' option which prevents tar from exitting with non-zero status on unreadable files

(Bug-tar) --ignore-failed-read not applied to files changing as tar reads them: Tar user offering new tar option `--ignore-failed-read' to let tar exit with 0 after expected failed reads