[Bug] Wrong latest_stable_release_number when simultaneous releases

[poum]

Given API request for a package
When 2 different releases occured at the same time
Then the latest_stable_release_number occurs not the be the highest release number

Way to reproduce:

• call API for markbaker/matrix
• latest_stable_release_number is 2.1.4
• Should be 3.0.1

Release number indicated on web page is also erroneous

Proof

See https://libraries.io/packagist/markbaker%2Fmatrix

Way to fix

• Select all matching releases with last release date
• Sort select on descending release number
• Select the first on