Ckeditor is duplicating my data

Hi,

Ckeditor is duplicating my data,after updating ckeditor with upload video button ,

Saving record with video is working fine,also checked inside database,its look okay,

but when i edit record and and save it, it duplicates content inside inside record .

while fetching,why ck editor is duplicating records ?

For first time when i save record data with video,ckeditor source is given below

<div>
<video controls="controls" height="894" id="video2014715185022" poster="http://185.143.98.191:9000/education/maxis/ugc/ckeditor/images/MV5BMTcwNzAxMDU1M15BMl5BanBnXkFtZTgwNDE2NTU1MTE%40__V1__SX1857_SY894_.jpg" width="603"><source src="http://185.143.98.191:9000/education/maxis/ugc/ckeditor/files/Smiling.mp4" type="video/mp4" />Your browser doesn't support video.<br />
Please download the file: <a href="http://185.143.98.191:9000/education/maxis/ugc/ckeditor/files/Smiling.mp4">video/mp4</a></video>
</div>

Image is attached for reference.

Please suggest

Regards

Attachments:

After save and edit screenshort