Extension package title collides with OS packages

[jonhattan]

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 4.x
• Ruby: 2.1.5p273
• Distribution: Debian
• Module version: 5.x.x, 4.x.x

How to reproduce (e.g Puppet code you use)

package {['curl', 'memcache']: }

class {'php':
  'extensions' => {
    'curl' => {},
    'memcache' => {
      'provider' => 'pecl',
    }
  }
}

What are you seeing

Error because the package title used for the pecl extension is the same as an OS package we want to install in the same node.

What behaviour did you expect instead

Correct installation of both debian and pecl packages with the same name.

Output log

Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Error while evaluating a Resource Statement, Duplicate declaration: Package[curl] is already declared in file ...
Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Error while evaluating a Resource Statement, Duplicate declaration: Package[memcache] is already declared in file ...

[jonhattan]

Same error is present in puppet3/4.x.x. It was introduced in some refactoring because it worked in old mayflower/php.

[roll4life]

@jonhattan
I Can confirm the behavior in puppet3/4.x.x on ubuntu 16.04 as well.