6.4 to 6.5 update error
using instruction from here https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/update/6.4-to-6.5.md never modified files by hands
#sudo -u git -H git checkout 6-5-stable
error: Your local changes to the following files would be overwritten by checkout:
db/schema.rb
Please, commit your changes or stash them before you can switch branches.
Aborting
can you help me?