Fix 'Solidify Stroke' node not appending elements in the BezPath after the first ClosePath element (#2732)

Issue:
Previously the `AppendBezpath::append_bezpath()` method didn't append the elements after the first `ClosePath` element in the given BezPath, but the Bezpath can contain more than one path. The 'Solidify Stroke' node creates at least two paths, but the `append_bezpath` method only appends the first path, and hence 'Solidify Stroke' didn't work correctly.

Fix:
Now `AppendBezpath::append_bezpath()` appends all the paths in the given BezPath, which also fixes the 'Solidify Stroke' node.

Author: indierusty

node-graph/gcore/src/vector/vector_data/modification.rs

@@ -583,6 +583,15 @@ impl<'a> AppendBezpath<'a> {
 		self.last_point_index = Some(next_point_index);
 	}
 
+	fn reset(&mut self) {
+		self.first_point = None;
+		self.last_point = None;
+		self.first_point_index = None;
+		self.last_point_index = None;
+		self.first_segment_id = None;
+		self.last_segment_id = None;
+	}
+
 	pub fn append_bezpath(vector_data: &'a mut VectorData, bezpath: BezPath) {
 		let mut this = Self::new(vector_data);
 		let mut elements = bezpath.elements().iter().peekable();
@@ -621,8 +630,8 @@ impl<'a> AppendBezpath<'a> {
 					}
 				}
 				PathEl::ClosePath => {
-					// Already handled using `append_segment_and_close_path()`;
-					break;
+					// Already handled using `append_segment_and_close_path()` hence we reset state and continue.
+					this.reset();
 				}
 			}
 		}