With enter mode as <br>, decreasing indent will cause different lines form back into 1 single line

[John Zhao]

Issue: With enter mode as <br>, decreasing indent will cause different lines form back into 1 single line.

Steps to reproduce:

1. Use enterkey.html in sample of entryKey plugin.
2. Change "When Enter is pressed:" to "Break the line with a <BR>".
3. Type 123 and then press Enter key, do the same for 456, 789.
4. Now we have 123,456,789 in THREE lines.
5. Select them all to insert bulleted list.
6. Select the last line 789 and click on decrease indent.
7. Now 789 is removed from the list. And now do the same to 456.

Expected Result: 456,789 are in two lines.

Actual Result: 456,789, are in the same line.

We have figure out the root cause and one possible solution.

See ​https://github.com/liferay/liferay-ckeditor/pull/4

[Jakub Ś]

Problem can be reproduced from CKEditor 3.4.2. Before that version BR's were preserved.

@JohnZhao could I ask you to submit your pull request to ​ckeditor-dev ?

Please note that it is required to provide tests to your PR and describe what or which bug does it fix exactly. Please see e.g. ​​https://github.com/ckeditor/ckeditor-dev/pull/185 or other accepted pull requests.

[Piotrek Koszuliński]

Please also read ​http://docs.ckeditor.com/#!/guide/dev_contributing_code