Wrong formatting of month "May" using {{entry.postDate|date('F')}}

[babau67]

Description

I have a multisite in one language (italian) when I use a date format F for full textual representation, it returns correctly all months (eg January -> Gennaio, and so on) but not May that should be Maggio.
For May it returns me "mag" like if I had used the short format M (three letters).

Steps to reproduce

1. multisite with italian locale
2. try to output some data in may with filter | date('F) - eg {{entry.postDate|date('F')}}
3. the output is mag instead maggio

Additional info

• Craft version: 3.0.5
• PHP version: 7.0.28
• Database driver & version: MySQL 5.7.22
• Plugins & versions: Redactor 2.0.0.1

[brandonkelly]

Thanks for pointing that out! Fixed for the next release.