No---even the encrypted password will be sent to other routers as the same password unencrypted...for example...show run will reveal
username bla priv 15 secret 1*12mG1!weRhU34!h*8%k!!
when you have typed
username bla priv 15 secret blabla
yet transferring the config with the encrypted password will still result in the password being "blabla"
In other words, you are safe---it will not lock you out and you will not need to do a password recovery.
But don't take my word for it---I have done this many times before, but you should ALWAYS test a theory in a lab before deploying, especially to multiple machines!
HTH!
/
tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!