In typeindex code, for an instanceContainer, a container may be listed more than once

[bourgeoa]

If a container is added to multiple solid:forClass than the container will be displayed multiple times.
Is this the expected behaviour ?

[SharonStrats]

Based on what I have seen it looks like a container should only have one mintClass which is used for the solid:forClass, so it should technically never have 2 entries. @bourgeoa I know this is from a while ago, but wondering if something happened where there were 2? If so I can look to make sure it can't happen.