brush removing char bug fix

README.md

@@ -77,8 +77,6 @@ A most latest production build to use is available at https://asciibird.jewbird.
 
 ## Bugs to fix
 
-* If you apply an empty block from a brush, it will remove the char when it is supposed to leave the block alone.
- * A bigger circle brush is a good example for this one.
 * The edit dialog, even when code to save new data is commented out, will slow down everything if you open and save the modal a few times
 
 ## Mobile / Touch Screen support

src/views/Editor.vue

@@ -1662,7 +1662,7 @@ export default {
         }
 
         for (let x = 0; x < xLength; x++) {
-          if (!this.brushBlocks[y][x]) {
+          if (!this.brushBlocks[y][x] || JSON.stringify(this.brushBlocks[y][x]) === '{}') {
             continue;
           }