fix move insert

lib/Timeline.js

@@ -146,7 +146,7 @@ let Timeline = class Timeline extends lit_element_1.LitElement {
                 }
                 else if (pos <= idx + r.parent.children.length) {
                     if (alreadyChild) {
-                        this.rows.splice(idx + r.parent.children.indexOf(r) + 1, 0, r);
+                        this.rows.splice(idx + r.parent.children.findIndex((o) => o.id == r.id) + 1, 0, r);
                     }
                     else {
                         this.rows.splice(pos, 0, r);
@@ -158,7 +158,7 @@ let Timeline = class Timeline extends lit_element_1.LitElement {
                         this.rows.splice(idx + r.parent.children.indexOf(r) + 1, 0, r);
                     }
                     else {
-                        this.rows.splice(idx + r.parent.children.length, 0, r);
+                        this.rows.splice(idx + r.parent.children.length + 1, 0, r);
                         r.parent.children = [...r.parent.children, r];
                     }
                 }

src/Timeline.ts

@@ -201,7 +201,7 @@ class Timeline extends LitElement {
           if (!alreadyChild) r.parent.children = [r, ...r.parent.children];
         } else if (pos <= idx + r.parent.children.length) {
           if (alreadyChild) {
-            this.rows.splice(idx + r.parent.children.indexOf(r) + 1, 0, r);
+            this.rows.splice(idx + r.parent.children.findIndex((o) => o.id == r.id) + 1, 0, r);
           } else {
             this.rows.splice(pos, 0, r);
             r.parent.children.splice(pos - idx, 0, r);
@@ -210,7 +210,7 @@ class Timeline extends LitElement {
           if (alreadyChild) {
             this.rows.splice(idx + r.parent.children.indexOf(r) + 1, 0, r);
           } else {
-            this.rows.splice(idx + r.parent.children.length, 0, r);
+            this.rows.splice(idx + r.parent.children.length + 1, 0, r);
             r.parent.children = [...r.parent.children, r];
           }
         }