[SR-Users] Removing display-name with uac_replace_from

Hi, in kamailio 3.3, doing uac_replace_from("", "$var(myuri)"); doesn't remove the old Display part anymore (although the documentation still says it should), the debug log is: DEBUG: uac [uac.c:499]: dsp=(nil) (len=0) , uri=0x7fff87f6b840 (len=28) DEBUG: uac [replace.c:324]: uri to replace [sip:a@example.org] DEBUG: uac [replace.c:325]: replacement uri is [sip:b@example.org] DEBUG: uac [replace.c:383]: encode is=<UEtlSyomCD8kIi8/SnlZMzNyS29QS2VLanBKeg--> len=40 So no hint that the old display is being removed. When doing uac_replace_from("foo", "$var(myuri)"); then there's an additional line like this: DEBUG: uac [replace.c:284]: removing display ["olddisplay"] which is missing when I put an empty string in the first parameter. Andreas