Steps to reproduce:
0) Setup alloyeditor as the default editor
1) Start editing web content (create a new web content or edit existing).
2) Paste the following text: "This is a test paragraph that links to www.liferay.com which is the official site of Liferay. The site www.helsinki.fi belongs to University of Helsinki."
3) Observe that in the pasted result www.liferay.com has automatically moved from the middle of the paragraph to the beginning of the paragraph. The URL www.helsinki.fi has not been automatically linked and is where it should be. This happens every time, eg. if you paste a second instance of the same paragraph, "www.liferay.com" is again moved in front of the whole paragraph.
Reproduced on Master