Since a few days ago any filter code causes the message "The filter did not match this change." when testing a filter against a change.
Go to a page like
https://pt.wikipedia.org/wiki/Special:AbuseFilter/examine/log/2148379?testfilter=true&uselang=en
and type any code, e.g. `true`, or `1`, or `2>1`. Any code causes the same message. No code matches the edit.
The following API calls produce the output
```
{
"abusefiltercheckmatch": {
"result": ""
}
}
```
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=true
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=1
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=2%3E1
while the calls to
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=false
https://pt.wikipedia.org/w/api.php?action=abusefiltercheckmatch&logid=123456&filter=0
produce this:
```
{
"abusefiltercheckmatch": []
}
```