From time to time you may find that you have a copy of a template that you are designing but the template has been locked by another user wrongly releasing and downloading the template. This potentially would mean that you would lose your current design.
By relocking the design it becomes locked to you again so that you can save/publish your design.
By doing this the version code held by fSeries will be different from yours and so you will need to override the version when you next save/publish.
The system will not permit you to relock a template currently locked by you; it is unnecessary.