Redactor deleting   and other inline markup I'm running the latest version of Craft 
Craft Pro 2.5.2760
I've tried this on a vanilla install and on a current site where the issue was highlighted initially.

If I copy and paste "this is some text" into a richtext field, regardless of "Clean up HTML" and "Purify HTML" options being checked or not, when I press save or switch into and out of HTML mode I'm left with

 "this is" where the text within the &lt;i&gt; and &lt;b&gt; tags have been stripped out.


If the markup looks like 

&lt;p&gt;this is &lt;em&gt;some&lt;/em&gt; &lt;strong&gt;text&lt;/strong&gt;&lt;/p&gt; 


everything is fine, nothing gets stripped out.

There is clearly an issue with 

&lt;i&gt; and &lt;b&gt; and possibly other tags.


A work around I've found is using in a custom .json in the redactor folder in config.

pasteInlineTags: ['b', 'i']


which instantly removes the b and i tags on paste, however this removes the formatting that the user is trying to copy and paste in which kind of defeats the point of being able to copy and paste.

So I need a solution that will allow the copy and paste of content from word, or pages or another system where the b and i tags are not stripped out immediately.

Just to cover myself I have also tried removing all plugins to see if any of them were causing an issue but again this had no impact.

Thanks in advance for your help you lovely people.
Imperavi fixed this in Redactor II 1.2.2, and we included that update in Craft 2.5.2763.