Fixes a few last points

packages/core/scripts/build.js

 const name = process.env.npm_package_name || ''
 
 async function main() {
+  if (!fs.existsSync('./dist')) {
+    fs.mkdirSync('./dist')
+  }
+
   try {
     esbuild.buildSync({
       entryPoints: ['./src/index.ts'],

packages/core/scripts/dev.js

 /* eslint-disable */
-
+const fs = require('fs')
 const esbuild = require('esbuild')
 
 const name = process.env.npm_package_name || ''
 
 async function main() {
+  if (!fs.existsSync('./dist')) {
+    fs.mkdirSync('./dist')
+  }
+
   esbuild.build({
     entryPoints: ['./src/index.ts'],
     outdir: 'dist/cjs',
     minify: false,
     bundle: true,
     format: 'cjs',
-    target: 'esnext',
+    target: 'es6',
     jsxFactory: 'React.createElement',
     jsxFragment: 'React.Fragment',
     tsconfig: './tsconfig.json',

packages/tldraw/package.json

     "rko": "^0.5.18"
   },
   "gitHead": "4a7439ddf81b615ee49fddbe00802699975f9375"
-}
+}

packages/tldraw/scripts/build.js

 const name = process.env.npm_package_name || ''
 
 async function main() {
+  if (!fs.existsSync('./dist')) {
+    fs.mkdirSync('./dist')
+  }
+
   try {
     esbuild.buildSync({
       entryPoints: ['./src/index.ts'],

packages/tldraw/scripts/dev.js

 /* eslint-disable */
-
+const fs = require('fs')
 const esbuild = require('esbuild')
 
 const name = process.env.npm_package_name || ''
 
 async function main() {
+  if (!fs.existsSync('./dist')) {
+    fs.mkdirSync('./dist')
+  }
+
   esbuild.build({
     entryPoints: ['./src/index.ts'],
     outdir: 'dist/cjs',
     minify: false,
     bundle: true,
     format: 'cjs',
-    target: 'esnext',
+    target: 'es6',
     jsxFactory: 'React.createElement',
     jsxFragment: 'React.Fragment',
     tsconfig: './tsconfig.build.json',

packages/tldraw/src/state/tlstate.ts

   /* -------------------- Internal -------------------- */
 
   protected onStateWillChange = (state: Data, id: string): void => {
-  
-    if (id === "reset" || id.startsWith("command")) {
+    if (!id.startsWith('patch')) {
       this.selectHistory.stack = [[]]
       this.selectHistory.pointer = 0
     }
-
   }
 
   protected onStateDidChange = (state: Data, id: string): void => {