Ability to use quick filters for different projects

Problem Definition

When you select more than one quick filter in JIRA Agile, the parameter "AND" is added to the filter.
However if you have different quick filters, each one bringing a different project (since you can have many projects in a board), it doesn't work if you select more than one quick filter. The JQL will be something like "project = Project1 AND project=project2", which is not valid in JQL.

Suggested Solution

Ability to filter for different projects in a board but being able to select more than one.