[orca] Fix bug in code to identify insertion, deletion, and marked content

[Joanmarie Diggs <joanied src gnome org>]

commit e66900e77c48089ca72bad0a3f4f4e1ad2a31c2a
Author: Joanmarie Diggs <joanmarie diggs gmail com>
Date:   Tue Jan 28 12:01:59 2020 -0500

    Fix bug in code to identify insertion, deletion, and marked content

 src/orca/scripts/web/script_utilities.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index acaac039f..930f5afac 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -2128,7 +2128,7 @@ class Utilities(script_utilities.Utilities):
         except:
             pass
 
-        return 'deletion' in self._getXMLRoles(obj) or 'del' in self._getTag(obj)
+        return 'deletion' in self._getXMLRoles(obj) or 'del' == self._getTag(obj)
 
     def isContentInsertion(self, obj):
         if not (obj and self.inDocumentContent(obj)):
@@ -2141,7 +2141,7 @@ class Utilities(script_utilities.Utilities):
         except:
             pass
 
-        return 'insertion' in self._getXMLRoles(obj) or 'ins' in self._getTag(obj)
+        return 'insertion' in self._getXMLRoles(obj) or 'ins' == self._getTag(obj)
 
     def isContentMarked(self, obj):
         if not (obj and self.inDocumentContent(obj)):
@@ -2154,7 +2154,7 @@ class Utilities(script_utilities.Utilities):
         except:
             pass
 
-        return 'mark' in self._getXMLRoles(obj) or 'mark' in self._getTag(obj)
+        return 'mark' in self._getXMLRoles(obj) or 'mark' == self._getTag(obj)
 
     def isContentSuggestion(self, obj):
         if not (obj and self.inDocumentContent(obj)):