Bug 2020500 Comment 1 Edit History

Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.

The recent case where I saw this was here:
https://bugzilla.mozilla.org/show_bug.cgi?id=1939472#a36907075_278074

Bugzilla shows "User Story: (updated)" in the comment-stream there (but I did not in fact touch the user-story field).

And the bug history (https://bugzilla.mozilla.org/show_activity.cgi?id=1939472 ) superficially shows that I removed **nearly** the entire contents of that field and replaced it with the exact same contents:
```
@@ -1,7 +1,7 @@
-platform:windows,mac,linux,android
-impact:minor-visual
-configuration:general
-affects:all
-branch:release
-diagnosis-team:layout
+platform:windows,mac,linux,android
+impact:minor-visual
+configuration:general
+affects:all
+branch:release
+diagnosis-team:layout
user-impact-score:30
```

Notably, it shows the final line (`user-impact-score:30`) as being untouched, but all the previous lines as having been removed and added back.  So that's a strong clue that this might be related to something related to newlines or some other sort of non-visible end-of-line control character.
The recent case where I saw this was here:
https://bugzilla.mozilla.org/show_bug.cgi?id=1939472#a36907075_278074

Bugzilla shows "User Story: (updated)" in the comment-stream there (but I did not in fact touch the user-story field).

And the bug history (https://bugzilla.mozilla.org/show_activity.cgi?id=1939472 ) superficially shows that I removed **nearly** the entire contents of that field and replaced it with the exact same contents:
```
@@ -1,7 +1,7 @@
-platform:windows,mac,linux,android
-impact:minor-visual
-configuration:general
-affects:all
-branch:release
-diagnosis-team:layout
+platform:windows,mac,linux,android
+impact:minor-visual
+configuration:general
+affects:all
+branch:release
+diagnosis-team:layout
user-impact-score:30
```

Notably, it shows the final line (`user-impact-score:30`) as being untouched, but all the previous lines as having been removed and added back.  So that's a strong clue that this might be related to something related to newlines or some other sort of non-visible end-of-line control character (something that's "unstable" and present on all but the last line).
The recent case where I saw this was here:
https://bugzilla.mozilla.org/show_bug.cgi?id=1939472#a36907075_278074

Bugzilla shows "User Story: (updated)" in the comment-stream there (but I did not in fact touch the user-story field).

And the bug history (https://bugzilla.mozilla.org/show_activity.cgi?id=1939472 ) superficially shows that I removed **nearly** the entire contents of that field and replaced it with the exact same contents:
```
@@ -1,7 +1,7 @@
-platform:windows,mac,linux,android
-impact:minor-visual
-configuration:general
-affects:all
-branch:release
-diagnosis-team:layout
+platform:windows,mac,linux,android
+impact:minor-visual
+configuration:general
+affects:all
+branch:release
+diagnosis-team:layout
user-impact-score:30
```

Notably, it shows the final line (`user-impact-score:30`) as being untouched, but all the previous lines as having been removed and added back.  So that's a strong clue that this might be related to something related to newlines or some other sort of non-visible end-of-line control character (something that's "unstable" in some way, and present on all but the last line).

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