Hello Eshang Harshana,

As uninstalling the module every time is not a correct solution as well as not recommended , therefore you might try two things :
1. Try Upgrading the module from which you have inherited your Qweb Template, and if this doesn’t work then
2. Delete the particular template manually i.e. switch on the Debug mode ->
“Settings -> Technical -> Views”, search for your template name and the template you are inheriting from, then delete both of them.
Perform step-1 and your changes will get reflected.

Hope this answer helps you.

Thanks & Regards,
Email: odoo@aktivsoftware.com
Skype: kalpeshmaheshwari