I experienced today the same thing than Father Latour.
I put some of my dead sheep (3 sheep , 1 Ram , 1 Aborted fetus) outside my building , and today one of the sheep is now alive again. If that's matter : that sheep was bought on city 1st September , dead 8 November for unknown reason , and experienced one Blood Moon outside (Blood Moon begun later on the 8 November).
I never experienced that before , but they are usually kept inside building or mine.
During the "Death episode" the sheep had access to food (they eat ! ), gates were opened :

Bjebr
Edit after a few testings: This sheep has accepted a medication (Scrapie suppository) even if she didn't seems sick (she walked/moved "normally"). In my opinion the revival episode is linked to sickness : a dead animal can become sick , when sick it looks alive and healthy. If not treated she die again (like Father Latour Ram) , if treated I don't know (yet).
As a reminder in the early Popham days , there was a bug when sick animals were turned into looking/moving like healthy animals (but were still sick and later dies from it : read here for example) , for me it's the same bug ... but for dead animals.