After doing this line break has been gone means no line break works.
one more thing when i type
<IMG src="<REF Source="Asset" AssetType="Image" ColumnType="Asset" Alt="" Name="m" Mandatory="Yes" />" Alt="" />
editor replaces it to
<img src="<REF Source=" name="m" mandatory="Yes" columntype="Asset" assettype="Image" Asset?>" />
Please reply.
(one more thing DisableCtrlZ setting to true in constant.js is also not working)