`JsonFormat` timezone attribute effect overwritten if pattern attribute present

[gviczai]

In JacksonJodaDateFormat:

public JacksonJodaDateFormat with(JsonFormat.Value ann) {
        JacksonJodaDateFormat format = this;
        format = format.withLocale(ann.getLocale());
        format = format.withTimeZone(ann.getTimeZone());
        format = format.withFormat(ann.getPattern().trim());

The withFormat() call overwrites the DateTimeFormatter created by withTimeZone() call.
So the resulting object in the _formatter field of JacksonJodaDateFormat will have the iZone field value set to null.

[cowtowncoder]

Hmmh. This may be tricky one, due to tight coupling of format and timezone by JDK. But I'll have a look.
Thank you for reporting this.

[cowtowncoder]

Seems like new contributor friendly, will label as such.

[cowtowncoder]

I just realized that I would need a test case here to see what the problem is: description is not enough to see what is going wrong.