"Church rests" inconsistency

[Dan Eble]

Is it correct to notate these two `R\breve*6` rests differently?  Should 
there be a third mark in the 12/1 measure?

```
\version "2.24.4"

{
  \compressEmptyMeasures
  \time 2/1
  R\breve*6
  \time 12/1
  R\breve*6
}
```