Git variable expansion when pulling ?

Hi , I’ve just setup a variable expansion scheme via the attribues filters for our versioning purposes. I do realise there is much debate on whether to do this or not but it is an indispensable part for our code.

However i just realised the filters are not executed if we update the code via a pull command and the file with the metadata is not modified . 

Is there a correct way to have the filter execute even for a pull and update the Git sha1 info in our log file ? 

Thanks

Gabriel