I confirmed the patch is included in the 4.6.0 release, and we're carrying 4.6.1 in groovy. Note that a subsequent change after this patch switched from parsing the raw output text to using the XML format, as it seems to be more version-stable with historical versions of the package; however we're just backporting the exact bug-fix to keep the SRU focused to the minimally effective change.
I confirmed the patch is included in the 4.6.0 release, and we're carrying 4.6.1 in groovy. Note that a subsequent change after this patch switched from parsing the raw output text to using the XML format, as it seems to be more version-stable with historical versions of the package; however we're just backporting the exact bug-fix to keep the SRU focused to the minimally effective change.