JQGrid 4.4.0: 'date' formatter srcformat/newformat now tries to format date when source date's format does not match srcformat
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I have a JQGrid that has a date column.  I use the date formatter to format the date to a `m/d/Y` format.  Previously, if the format of the source date did not match the `srcformat` I passed in the `formatoptions`, it just wouldn't format the date.  JQGrid v4.4.0 now attempts to format the date no matter the source format, and comes up with dates that are wayyy off :-).  

The dates I have populating into this column could either be in the correct format already (`m/d/Y`) or be in the format I have defined in `srcformat` (`Y-m-dTH:i:s`).  

Is there a way in JQGrid 4.4.0 to not try to parse dates that do not match the `srcformat`?

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My colModel def for column:

    {name:"date", index:"date", label:"Date", width:85, jsonmap:"date", hidden: false, formatter:'date', sorttype: 'date', formatoptions:{srcformat:'Y-m-dTH:i:s', newformat:'m/d/Y'}, searchrules: { date: true } }		

 
