Fix #2401 Cuve face selection issue when selecting group

When selecting multiple cubes, inherit the face selection from the first selected cube
Tweak issue template to explain what format means

.github/ISSUE_TEMPLATE/issue.yaml

@@ -29,6 +29,7 @@ body:
   id: format
   attributes:
     label: Model format in which the issue occurs
+    description: Format means which option you choose when creating a new model. Not the file extension.
   validations:
     required: true
 - type: dropdown

js/outliner/cube.js

@@ -252,6 +252,18 @@ class Cube extends OutlinerElement {
 		}
 		return this;
 	}
+	selectLow(...args) {
+		let was_selected = this.selected;
+		super.selectLow(...args);
+		if (!was_selected && Cube.selected[0]) {
+			let other_selected_faces = UVEditor.selected_faces.slice();
+			let own_selected_faces = UVEditor.getSelectedFaces(this, true);
+			if (other_selected_faces?.length && !own_selected_faces?.length) {
+				own_selected_faces.replace(other_selected_faces);
+			}
+		}
+		return this;
+	}
 	size(axis, floored) {
 		var scope = this;
 		let epsilon = 0.0000001;

js/outliner/group.js

@@ -68,10 +68,11 @@ class Group extends OutlinerNode {
 		var scope = this;
 		if (Blockbench.hasFlag('renaming') || this.locked) return this;
 		if (!event) event = true
-		var allSelected = Group.selected === this && selected.length && this.matchesSelection()
+		var allSelected = Group.selected === this && selected.length && this.matchesSelection();
+		let previous_first_selected = Project.selected_elements[0];
 
 		//Clear Old Group
-		if (Group.selected) Group.selected.unselect()
+		if (Group.selected) Group.selected.unselect();
 		if ((event.shiftKey || Pressing.overrides.shift) !== true && (event.ctrlOrCmd || Pressing.overrides.ctrl) !== true) {
 			selected.length = 0
 		}
@@ -87,6 +88,10 @@ class Group extends OutlinerNode {
 			//Select Only Group, unselect Children
 			selected.length = 0
 		} else {
+			// Fix for #2401
+			if (previous_first_selected && previous_first_selected.isChildOf(this)) {
+				selected.push(previous_first_selected);
+			}
 			scope.children.forEach(function(s) {
 				s.selectLow()
 			})

js/outliner/outliner.js

@@ -478,7 +478,9 @@ class OutlinerElement extends OutlinerNode {
 
 		//Normal
 		} else {
-			selected.forEachReverse(obj => obj.unselect())
+			selected.forEachReverse(obj => {
+				if (obj != this) obj.unselect();
+			})
 			if (Group.selected) Group.selected.unselect()
 			this.selectLow()
 			just_selected.push(this)

package.json

@@ -1,7 +1,7 @@
 {
 	"name": "Blockbench",
 	"description": "Low-poly modeling and animation software",
-	"version": "4.10.3",
+	"version": "4.10.4",
 	"license": "GPL-3.0-or-later",
 	"author": {
 		"name": "JannisX11",