BUG: Overwrites the 'billing' amount on the account page.

[andrewlimaza]

When purchasing an Addon Package, this shows the purchased value of the Addon Package under 'billing' on the account page instead of the original member's price/subscription amount.

Steps to recreate:

• Signup for a membership level, let's say $1 a month.
• Create an Addon Package post that is $5 to purchase.
• Purchase the Addon Package.
• Navigate to your account page, view the current membership level billing table and pricing shown is $5 instead of $1.

In this image below, the Addon Post was $10 to gain access, and my test account had a previously set $1 per month membership. After purchasing access, it shows as $10.

[MaryOJob]

Moderators Only: #460492

[kimcoleman]

This should be fixed as of PMPro v3.0 + this PR: https://github.com/strangerstudios/pmpro-addon-packages/pull/65