Generating empty file about po-merger HOT 3 CLOSED

As of now (there is no translation to do), the following command creates the problem:

wp po merge fr-ca fr 4.3 --diff-only

It produces this file:

# Translation of WordPress - 4.3.x in French (Canada)
# This file is distributed under the same license as the WordPress - 4.3.x package.
msgid ""
msgstr ""
"PO-Revision-Date: 2019-02-02 18:13:20+0000\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=n != 1;\n"
"X-Generator: GlotPress/2.4.0-alpha\n"
"Language: fr_CA\n"
"Project-Id-Version: WordPress - 4.3.x\n"

It should produce no file and simply display a message.

from po-merger.

@PavelZaharciuc

I ran the command:

wp po merge fr-ca fr 5.1 --diff-only

... and got the following result:

Here is the current status of that project:

Shouldn't the "Administration" sub project return these 68 strings as they are not approved ?

from po-merger.

The parameter "--diff-only" applies the filter "untranslated" to the download URL. Since the project doesn't have any untranslated strings, the request returns the PO file containing only the definition header.
Thus, this behavior is normal.

from po-merger.