Avoid server error caused by UnicodeDecodeError

Sometimes b32decode may generate data which can't be decoded.
Ignore UnicodeDecodeError so that a few other formats can be tried.

Closes-bug: #2043572
Change-Id: I5d978e8eb3931a218b1946625baa28aa23890cd6
(cherry picked from commit e1b7aceff9)
(cherry picked from commit d28c06a525)

manila_ui/dashboards/utils.py

@@ -124,7 +124,7 @@ def transform_dashed_name(name):
     try:
         return base64.b32decode(
             name.replace('_', '=').upper().encode()).decode()
-    except binascii.Error:
+    except (binascii.Error, UnicodeDecodeError):
         if re.search(r'^[a-z_\d]+$', name):
             return name  # leave as-is names without dashes and capitals
         else:

releasenotes/notes/bug-2043572-fix-error-in-share-creation-1a8feef763c21b25.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixed error in share creation caused by internal UnicodeDecodeError.
+    `Launchpad bug #2043572 <https://bugs.launchpad.net/manila-ui/+bug/2043572>`_