Adding a unit that's currently being built to a control group (Autogroup immediate mode: ON) makes its control group number display disappear when it leaves the factory

Description

If you bind a unit to a group while it's being built, on leaving the factory, the visual display will make it look like it's not in any group.

It gets fixed when you add another unit to the group.

Expected Behaviour

Visual group number indicator stays.

Actual Behaviour

Visual group number indicator disappears upon leaving the factory.

Reproduction steps

Start making a unit (that you assigned to an autogroup at some previous point), add it to another control group. See result after it leaves the factory.

Other

No response