[vcs] Don't throw cancellation exception during git log disposing, when a commit loading task was already canceled.

GitOrigin-RevId: d1ccb1881c887a9383bbc47052edf1ca76fded5f

platform/vcs-log/impl/src/com/intellij/vcs/log/data/SingleTaskController.java

@@ -220,6 +220,8 @@ public abstract class SingleTaskController<Request, Result> implements Disposabl
           LOG.debug(e);
         }
       }
+      catch (CancellationException ignored) {
+      }
       catch (TimeoutException e) {
         if (longTimeOut) LOG.warn(formMessage("Wait time out "), e);
       }