"dimovit" macronized as "dimōvit"

"dimovit" is macronized as "dimōvit", but shouldn't it be "dīmōvit"? (L&S, Gaffiot, LaNe give it as such.)

All variants are analysed as having a short "i" it seems:

```
dimoveō
dimovēre
dimōvī
dimōvit
```


(I stumbled across this because it didn't know how to scan `inque foco tepidum cinerem dimovit et ignes` as dactylic hexameter )