Yes, it seems they are referring to the MQ-1 reaper clone project. No evidence this ever was mass produced other than that single picture. The lack of quality control doesn’t bode confidence this was a serious project to replicate the MQ-1 when the Mohajer-10 also exists.
Compared to mohajer-10, S-139 looks like a cheap knock off.
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I still think it was an S-129 as that drone is the back bone of IRGC’s drone fleet and saw extensive use in Syria. I wouldn’t trust US reports properly identify the drone either intentionally or unintentionally misidentification is something they like to do.