dotcloud/docker — pull request #3853 by GermanDZ (2014-01-30 21:09:01+00:00)
Title: Fix ADD remote issue. Different file's content hit the same cache (#3847)

Force reading of downloaded file contents to obtain the checksum used by cache validation.

Docker-DCO-1.1-Signed-off-by: German Del Zotto (github: GermanDZ)