owncloud/core — pull request #4957 by bantu (2013-09-23 15:19:17+00:00)
Title: Backport of #4869 to stable5 (recreate an etag within the scanner if the cache contains an empty etag)

Backport of #4869
Cherry-pick of merge commit 5d671a8 as requested https://github.com/owncloud/core/pull/4869#issuecomment-24922622