Huh. Did they go back and shoot more Enterprise shots after shooting Reliant? Curious.
They did pick-ups and reshoots during the last four of principal photography (January 26-29, 1982).
There's only one scene on the bridge indicated on the schedule for those reshoots, though, and Spock isn't on the cast list for it (note that all of the scene descriptions for these pick-ups are deliberately wrong -- e.g. ""Spock comes back to life, really pissed-off. Swears revenge on Kirk."):
INT. ENTERPRISE BRIDGE - DAY
Sc. 247AA (ADDED)
Honeycombs explode. Cast & crew scatter for cover.
EFFECTS
spraying honey
ritter fans
handi-wipes
CAST
1. KIRK
2. BONES
7. SAAVIK
8. SCOTTY
9. UHURA
10. SULU
I don't have the movie's full schedule or script, so not sure where this scene lands in context.