When viewing a maniphest task, the "Projects" item shows underneath all custom fields.
{F197904}
In this screen shot "Mingle Card" is the custom field, and Projects shows under it. This itself isn't a huge deal. However, if you have a stupid amount of custom fields and break them up into sections using "header" elements, projects shows up at the bottom, so it looks like it's port of that section.
{F197945}