Fix ticket links in wiki conversion

migrate.cfg.example

@@ -13,7 +13,7 @@ url: https://example.com/xmlrpc
 path: /path/to/trac/instance
 
 # if no, a trac ticket reference is converted to the corresponding issue reference
-keep_trac_ticket_references: yes
+keep_trac_ticket_references: no
 
 [issues]
 

migrate.cfg.sagetracwikionly

@@ -18,7 +18,7 @@ url: https://trac.sagemath.org/xmlrpc
 cgit_url: https://git.sagemath.org/sage.git/
 
 # if no, a trac ticket reference is converted to the corresponding issue reference
-keep_trac_ticket_references: yes
+keep_trac_ticket_references: no
 
 [issues]
 

migrate.py

@@ -1302,7 +1302,7 @@ def ticket_link(self, match):
         if keep_trac_ticket_references:
             return r'[#%s](%s/%s)' % (ticket, trac_url_ticket, ticket)
         issue = ticket
-        return r'#%s' % ticket
+        return r'[#%s](%s/issues/%s)' % (issue, target_url_issues_repo, issue)
 
     def ticket_comment_link(self, match):
         """