[Bf-extensions-cvs] [1868f251] blender-v2.93-release: Fix T89724: Drawing with make line tool in an empty scene results crash

[Germano Cavalcante]

Commit: 1868f2511cf388a0fbf29736640102f96bcb2acd
Author: Germano Cavalcante
Date:   Thu Jul 8 12:27:14 2021 -0300
Branches: blender-v2.93-release
https://developer.blender.org/rBA1868f2511cf388a0fbf29736640102f96bcb2acd

Fix T89724: Drawing with make line tool in an empty scene results crash

The operator incorrectly set `self._snap_buffer` to `None`.

A more secure check could be implemented, but it didn't really seem
necessary.

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M	mesh_snap_utilities_line/snap_context_l/__init__.py

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diff --git a/mesh_snap_utilities_line/snap_context_l/__init__.py b/mesh_snap_utilities_line/snap_context_l/__init__.py
index 74c85499..5b4d14bb 100644
--- a/mesh_snap_utilities_line/snap_context_l/__init__.py
+++ b/mesh_snap_utilities_line/snap_context_l/__init__.py
@@ -381,7 +381,6 @@ class SnapContext():
         self._dist_px = int(dist_px)
         self._dist_px_sq = self._dist_px ** 2
         self.threshold = 2 * self._dist_px + 1
-        self._snap_buffer = None
 
     def set_snap_mode(self, snap_to_vert, snap_to_edge, snap_to_face):
         snap_mode = 0