Changing the entitydata of an ArmorStand wich is being ridden by another entity, deletes the ArmorStand and the entity riding it.
Changing the entitydata of a normal ArmorStand does work correctly.
Comments 3
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.
Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.
Cannot reproduce in 1.8. What specific command did you use? Also does this affect other entities?