Keen-Eyed Curator's static ability doesn't work

[sd-jazz]

Keen-Eyed Curator does not get +4/+4 and trample when it exiles 4 or more card types. When you hover over the card, the count for exiled card types is always 0.

[jeffwadsworth]

[[Keen-Eyed Curator]]

[github-actions]

Keen-Eyed Curator - (Gatherer) (Scryfall) (EDHREC)

{G}{G}
Creature — Raccoon Scout
3/3
As long as there are four or more card types among cards exiled with Keen-Eyed Curator, it gets +4/+4 and has trample.
{1}: Exile target card from a graveyard.

[JayDi85]

Real reason in diff effects with diff zcc:

• static abilities init from start of the game, e.g. zcc = 0
• activated abilities init on usage, e.g. zcc = 123

So keen's zone must be found from real object zcc, not ability's getSourceObjectZoneChangeCounter.

No needs in custom effect, ExileTargetForSourceEffect is fine. Simpler fix by c265e64