Adding a particular file gives a debug error in mayan

When creating a new document adding a particular gif file attached in the comment section is giving an error in mayan-edms. Attaching other .txt, .jpg or .gif files do not throw up this error. The error message is pasted below

AttributeError at /sources/upload/document/new/interactive/ 'Cursor' object has no attribute '_last_executed' Request Method: POST Request URL: http://localhost:8000/sources/upload/document/new/interactive/?metadata1_id=2&metadata0_id=1&metadata0_value=abc-100&metadata1_value=2015-12-21&document_type_id=4 Django Version: 1.7.10 Exception Type: AttributeError Exception Value: 'Cursor' object has no attribute '_last_executed' Exception Location: /home/sudharsan/ranjith_dev_env/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py in getattr, line 151 Python Executable: /home/sudharsan/ranjith_dev_env/bin/python Python Version: 2.7.6 Python Path: ['/home/sudharsan/ranjith_dev_env/ranjith_dev/mayan-edms', '/home/sudharsan/ranjith_dev_env/lib/python2.7', '/home/sudharsan/ranjith_dev_env/lib/python2.7/plat-i386-linux-gnu', '/home/sudharsan/ranjith_dev_env/lib/python2.7/lib-tk', '/home/sudharsan/ranjith_dev_env/lib/python2.7/lib-old', '/home/sudharsan/ranjith_dev_env/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-i386-linux-gnu', '/usr/lib/python2.7/lib-tk', '/home/sudharsan/ranjith_dev_env/local/lib/python2.7/site-packages', u'/home/sudharsan/ranjith_dev_env/ranjith_dev/mayan-edms/mayan/apps', '/home/sudharsan/ranjith_dev_env/ranjith_dev/mayan-edms'] Server time: Mon, 21 Dec 2015 17:46:14 +0530