When using offline areas, when 2 user's edit a feature and one use makes an attribute change and another user makes no attribute change. Depending on sync order, data is being overwritten. For example, in a comment attribute field, I made a comment of "x3 pipes". Another user made no comment in the attribute field and left it as NULL. After syncing my data first, the "x3 pipes" was put into the data. After syncing the other users device with NULL in the field, NULL overwrote the comment. Maybe I just did not notice over the past year over use with Field Maps but I do not remember NULL values overwriting attributes that were put in when synced. Other than not using offline area maps. Is there a way to prevent attributes from being overwritten by NULL values?