PDI-10998 - Unable to save any changes to transformation with "Email Messages Input" step in PDI 5.1 if it was created in PDI 4.4
Merge pull request #201 from pavel-sakun/PDI-10998

PDI-10998 - Unable to save any changes to transformation with "Email Messages Input" step in PDI 5.1 if it was created in PDI 4.4