Angle brackets are missing from pastes

Pasting Text containing `<` results in the generated Paste entry not containing those, up to and including the closing bracket.

E. g.:

In:
```
class Foo<Bar>
```

Out:
```
class Foo
```

Didn't have the time yet to figure out if this is Rocket or Pastebin or some other component, sorry. I'm submitting this issue since this is where I noticed the behavior.