<p dir="auto">With option "Use Preview Tabs" single click and double click on file in tree view open preview mode.<br>
Double click in tree view as I understand must open normal tab.<br>
Tested on Ubuntu 15.04 &amp; Windows 8</p>
<p dir="auto">Using Atom v0.206.0-4941229 on Mac OS X 10.10.3.</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/1038121/7951649/0ca54bf4-095f-11e5-9aa6-84c1474b35bd.png"><img src="https://cloud.githubusercontent.com/assets/1038121/7951649/0ca54bf4-095f-11e5-9aa6-84c1474b35bd.png" alt="screen shot 2015-06-02 at 7 38 29 pm" style="max-width: 100%;"></a></p>
<h3 dir="auto">Repro Steps</h3>
<ol dir="auto">
<li>Open Atom</li>
<li>Open Settings View</li>
<li>Navigate to Tabs package settings</li>
<li>Ensure "Use Preview Tabs" is checked</li>
<li>Close Settings View</li>
<li>Double-click any file in Tree View</li>
</ol>
<p dir="auto"><strong>Expected:</strong> Tab's title to not be italic (italic is the indicator that it is temporary)<br>
<strong>Actual:</strong> Tab's title is italic</p>
<ol dir="auto">
<li>Double-click another file in Tree View</li>
</ol>
<p dir="auto"><strong>Expected:</strong> Second tab to open<br>
<strong>Actual:</strong> New file overwrites the tab of the original file</p>