Description of the bug
When working with multiple accounts even if a different phone number and pin are supplied the previous session gets resumed.

To Reproduce
Login using pytr login using an existing key file. Then pytr login -n <somenumber> -p <somepin>. Might as well save a new key file. Now pytr dl_docs will use the first account not the one which was logged in last (given the session is still valid).

10:58:25 Found credentials file
10:58:25 Phone: +49***********, PIN: ****
10:58:29 Web session resumed.                           // <----- This should not be
10:58:29 Logged in
10:58:29 Created history file

Expected behavior
When logging in with a number other than the one the active session is linked to, I expect a the session to be invalidated and a new session to start.

Error log

Environment

• OS: MacOS
• pytr version: 0.1.5