[stable10] Keep redirect_url on failed auth#28511

PVince81 merged 2 commits intostable10owncloud/core:stable10from

stable10-a47b9bc7bc995df3aa9dd0c702de6d4aff79b0adowncloud/core:stable10-a47b9bc7bc995df3aa9dd0c702de6d4aff79b0adCopy head branch name to clipboard