remove animation before measuring

Author: Rich-Harris

packages/svelte/src/internal/client/dom/elements/transitions.js

@@ -94,19 +94,20 @@ export function animation(element, get_fn, get_params) {
 			from = this.element.getBoundingClientRect();
 		},
 		apply() {
+			animation?.abort();
+
 			to = this.element.getBoundingClientRect();
 
 			const options = get_fn()(this.element, { from, to }, get_params?.());
 
-			animation?.abort();
-
 			if (
 				from.left !== to.left ||
 				from.right !== to.right ||
 				from.top !== to.top ||
 				from.bottom !== to.bottom
 			) {
 				animation = animate(this.element, options, undefined, 1, () => {
+					animation?.abort();
 					animation = undefined;
 				});
 			}