in_array() expects parameter 2 to be array, string given when installing

[aheaume]

In a fresh directory, composer require lbaey/chromedriver fails

/tmp/chromedriver
➜ composer require lbaey/chromedriver
Using version ^1.1 for lbaey/chromedriver
./composer.json has been created
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing lbaey/chromedriver (1.1.0): Downloading (100%)         
Writing lock file
Generating autoload files
Please select the platform :
  [linux32] Linux 32Bits
  [linux64] Linux 64Bits
  [mac64  ] Mac OS X
  [win32  ] Windows
 > linux64

                                                            
  [ErrorException]                                          
  in_array() expects parameter 2 to be array, string given  
                                                            

require [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--update-with-all-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...

[aheaume]

This looks related to composer/composer#7106