Re^3: why does open ">..." sometimes touches the directory?

[parv]

Same does not happen on FreeBSD 8.3-STABLE when tried in zsh 4.3.10 & tcsh 6.18.01 (Astron) 2012-02-14 ...

mkdir -p ./tmp/test ; ll -d ./tmp/test ; sleep 60 ; echo > ./tmp/test/
+file ; ll -d ./tmp/test
drwx------  2 parv  people  512 Feb  5 01:48 ./tmp/test/
drwx------  2 parv  people  512 Feb  5 01:49 ./tmp/test/

... got the same result when directory was created in /tmp. I have to say I would be (rudely) surprised if the directory modification time did not change after a file was created.