Revert "do not load data when the file is open in read/write mode."
Revert "do not load data when the file is open in read/write mode."

This reverts commit 62375f5b7496aa0a1d249e8dacd217d392533106.

this breaks efreets icon cache. i have been noticing this since
yesterday across all my machines once i update just efl. i tracked it
down to this commit.

Backport from commits 414b447f54638a6c241c3a55c235945e76c6972f
on https://git.enlightenment.org/core/efl.git

gfriloux/eet,gfriloux/eet