From ba8c943fcd93d8c822671596e2631ca92fcb3ca3 Mon Sep 17 00:00:00 2001
From: Adam Williamson <awilliam@redhat.com>
Date: Oct 27 2022 22:33:43 +0000
Subject: Improve filtering of comma-separated bug strings


Thanks to @nielsenb for pointing out an issue here in #22. I
decided on a slightly different fix though.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

---

diff --git a/relval/report_results.py b/relval/report_results.py
index d704521..2fa0550 100644
--- a/relval/report_results.py
+++ b/relval/report_results.py
@@ -117,14 +117,16 @@ def get_result(username):
 
     bugs = input("Enter the IDs of any bugs associated with this report, "
                  "separated by commas. ")
-    if bugs == '':
-        bugs = None
-    else:
-        white = re.compile(r'\s')
-        bugs = white.sub('', bugs)
+    if bugs:
+        # filter all whitespace
+        bugs = re.sub(r'\s', '', bugs)
+        # split on commas
         bugs = bugs.split(',')
-        if bugs == '':
-            bugs = None
+        # drop any empty strings
+        bugs = [bug for bug in bugs if bug]
+    if not bugs:
+        # turn '' or [] into None
+        bugs = None
     comment = ''
     comm = input("Enter a comment if you like. If not, just hit Enter.\n"
                  "Maximum length is 250 characters.\nPlease don't leave a "