Capture groups broken in msdeploy 3.60

Hi there!

Since v3.60 msdeploy does not replace and/or capture groups correctly. 

Given a source file "myfile.php":

$myvar = array(
    'prop' => 'oldValue',
    ...
);

Using the msdeploy command line:

set value=newValue

msdeploy.exe ^
    -verb:sync ^
    -source:package="..." ^
    -dest:auto ^
    -setParam:kind=TextFile,scope=\\mydir\\myfile\.php$,match="('prop'\W+=>\W+)'\S+'",value="$1'%value%'" ^
    ...

Expected result (working with msdeploy up to v3.50):

$myvar = array('prop' => 'newValue',
    ...
);

Result with msdeploy v3.60:

$myvar = array($1'newValue',
    ...
);

Instead of inserting the captured group's content  'prop' =>  it inserts $1 literally.

Has the regex syntax changed in v3.60? What can I do to mitigate the problem? Using v3.50 is not really an option since I'd like to use v3.60's new http proxy capability.

Thanks and best regards,
Thomas