Description

pip-sync 7.0.0 reinstalls all packages which have non-lowercase letters in their names

For instance in *.in and *.txt files we have the following data:

django

and

django==4.2.0
  ...

When we run pip sync, it will uninstall and install django because in pip-freeze the same package mentioned as Django

Environment Versions

Steps to replicate

1. Create *.in file with django requirement
2. Compile requirements to generate *.txt file
3. Run pip-sync on the txt file
4. Run pip-sync on the txt file again

Expected result

The output should be Everything up-to-date

Actual result

The requirement is reinstalled every time you run pip-sync