Multiple fixed in version values

[ianh]

Using Mantis version 0.19.2

Suppose a user reports a bug with an old version of our application (1.4). We fix the bug and release a patch for them (call it 1.4.1). Using the same bug report, we also fix the latest development version (2.1)

We would like to include both (1.4.1) and (2.1) in the Fixed in Version field for that bug report, but are unable to.

I imagine this is a common problem and am interested to see how others have solved it?