Keys in Info.plist not merged but overwritted

[pavrda]

Bug Report

When using together plugins that use pods, keys in Info.plist are not merged but overwritten.
It happens for example for plugins cordova-plugin-facebook4, cordova-plugin-googleplus and ionic-plugin-deeplinks. They all set CFBundleURLSchemes key in Info.plist. There should be contribution from each plugin but actually there is only one. Keys are not merged but overwritten.
I realized that this happens when <pods use-frameworks="true"> in plugin.xml is set. When set to false, keys are merged as expected.

Problem

What is expected to happen?

Keys are merged like this:

<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>fb1234567890</string>
        </array>
    </dict>
    <dict>
        <key>CFBundleTypeRole</key>
        <string>Editor</string>
        <key>CFBundleURLName</key>
        <string>REVERSED_CLIENT_ID</string>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>REVERSED_CLIENT_ID</string>
        </array>
    </dict>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>URL_SCHEME</string>
        </array>
    </dict>
</array>

What does actually happen?

There is only one key:

<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>fb1234567890</string>
        </array>
    </dict>
</array>

Information

Command or Code

Create blank cordova project, add plugins and check the result:

$ cordova create test test test
$ cd myApp
$ cordova plugin add cordova-plugin-facebook4 --variable APP_ID=value --variable APP_NAME=value
$ cordova plugin add cordova-plugin-googleplus --variable REVERSED_CLIENT_ID=value
$ cordova plugin add ionic-plugin-deeplinks --variable URL_SCHEME=value --variable DEEPLINK_HOST=value
$ cordova platform add ios
$ less platforms/ios/test/test-Info.plist

After investigation in order to isolate plugin related bug I created as small as possible project to reproduce the bug fast: https://github.com/inited/cordova-plist-merge-fail

Environment, Platform, Device

Version information

Mac OS workstation:

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.14.6
BuildVersion:	18G103

$ uname -a
Darwin boaz.local 18.7.0 Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2/RELEASE_X86_64 x86_64

$ cordova --version
9.0.0 ([email protected])

$ node --version
v10.13.0

$ npm --version
6.13.1

Checklist

• I searched for existing GitHub issues
• I updated all Cordova tooling to most recent version
• I included all the necessary information above