commit c01256489fead73941ae78b1372fb8b052ec7833
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Sun Jan 31 16:26:51 2021 +0100

    Disallow setting a name with spaces in it.

diff --git a/src/main/java/org/distorted/dialogs/RubikDialogSetName.java b/src/main/java/org/distorted/dialogs/RubikDialogSetName.java
index b54e37d1..ef1bf5f8 100644
--- a/src/main/java/org/distorted/dialogs/RubikDialogSetName.java
+++ b/src/main/java/org/distorted/dialogs/RubikDialogSetName.java
@@ -141,6 +141,8 @@ public class RubikDialogSetName extends AppCompatDialogFragment
             name = name.substring(0,MAX_NAME_LEN);
             }
 
+          name = name.replace(' ', '_');
+
           RubikActivity act = (RubikActivity)getActivity();
           StateList.switchState(act, StateList.PLAY);
           RubikScores.getInstance().setName(name);