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Another JS related issue.
Maybe this could be solved by upgrading to newer libraries? Can someone confirm this on its own Redmine?

Maybe this could find its way in the next bug fix release as this is sometime a little bit annoying. ;-)
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I cannot reproduce.
Redmine 2.2.3
Firefox 19.0.2
Windows 7
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Yes, as mentioned above is this a IE related issue. ;-)
WebKit and gecko engines won't have this problem.
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By the way, I haven't checked it on ie 10. Will give it a try when I'm home.
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IE 9.0.14 has this problem
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I rechecked it now on IE 10. This occurs there too. So this is not a Problem of outdated Browsers like IE6, 7 & 8. It's a problem of the next generation too.
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I update this.
The text is lost in every list which uses this file: source:trunk/public/javascripts/context_menu.js

I debugged this. The text gets lost after a return in this file: source:trunk/public/javascripts/jquery-1.8.3-ui-1.9.2-ujs-2.0.3.js

It seems that this problem gets huger in the latest IE version. If I ctrl+click to multiselect issues, all text of the selected items get lost.

Maybe an upgrade of jquery and jqueryui would solve this problem. This bug makes the multiselection in Internet Explorer not really useful.
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Lower versions of Redmine (e.g. 2.0.x and 2.1.x) are also affected, too.
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Jongwook Choi wrote:
> Lower versions of Redmine (e.g. 2.0.x and 2.1.x) are also affected, too.

Thanks for the hint. I know this, I've set it initially to 2.1.4, but changed it to the most recent version as this still occurs there. :-)
Otherwise this one would maybe get lower priority as we thing this one is outdated. ;-)
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Daniel Felix wrote:
> I update this.
> The text is lost in every list which uses this file: source:trunk/public/javascripts/context_menu.js
>
yes, that one is the problem. And this one causes it:
<pre>
function contextMenuClearDocumentSelection() {
// TODO
if (document.selection) {
document.selection.clear(); // IE
} else {
window.getSelection().removeAllRanges();
}
}
</pre>

The @document.selection.clear()@ causes the selected text to disappear. According to doc from M$:
http://msdn.microsoft.com/en-us/library/ie/ms535869%28v=vs.85%29.aspx
the clear deletes the content of the selection. Replacing it with @.empty()@ seems to do the trick.

I don't claim to understand what the purpose of this function is. Why? Removing the line in question completely seems no to have any negative effect...

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I confirmed that using .empty() fixed the issue, thanks. Committed in r11750.
The purpose of this line is to avoid the text selection to appear when selecting multiple issues at once with the shift key pressed.
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relates,Closed,12710,Ticket selection removes text
duplicates,Closed,12951,Multi-lines select by control+clicking wipes out title texts on IE8
duplicates,Closed,8783,Words selected from issue list disappeared