Merge pull request #8678 from liusy182/download-item
authorKevin Sawicki <kevin@github.com>
Mon, 6 Mar 2017 18:11:22 +0000 (10:11 -0800)
committerGitHub <noreply@github.com>
Mon, 6 Mar 2017 18:11:22 +0000 (10:11 -0800)
only emit `download-item done` event once


Trivial merge