Arch Linux

Description:

When trying to decrypt a file for a specific key and the passphrase present in a file, gpg still asks for a passphrase via pinentry and reuses to accept the file.
strace suggests that the file is actually read but the content is ignored.
Using a non-existent passphrase-file will give an "File not found" error.
Typing in the passphrase by hand still works.

Using --batch --passphrase-file works in gpg (GnuPG) 1.4.16 on ubuntu.

Additional info:
* core/gnupg 2.1.2-1


Steps to reproduce:
$ gpg --homedir . --gen-key
gpg: WARNING: unsafe permissions on homedir './'
gpg (GnuPG) 2.1.2; Copyright (C) 2015 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Note: Use "gpg2 --full-gen-key" for a full featured key generation dialog.

GnuPG needs to construct a user ID to identify your key.

Real name: tester
Email address: test@test.com
You selected this USER-ID:
"tester <test@test.com>"

###generate key with passphrase "123" ###

$ echo "123" > passphrase
$ echo "myfile" > file
$ gpg --homedir . --recipient test@test.com --output file.gpg --encrypt file
$ gpg --homedir . --batch --passphrase-file passphrase --output file-2 file.gpg
###Asks for the passphrase despite the --batch mode###
gpg: encrypted with 2048-bit RSA key, ID 88B483A6, created 2015-03-17
"tester <test@test.com>"
gpg: public key decryption failed: Operation cancelled
gpg: decryption failed: No secret key