There is no Bottom Groove like shown for 44301b. However the stud underneath is hollow instead of filled like the picture for 44301b suggests. In Inventories Requests, randyf [...] (57 months ago, Aug 24, 2019, to Inventories Requests)
[...] We don't add alternate minifigures if the only difference is the stud type of the head. So in this case you can add ovr037a as an alternate to the set inventory [...] (57 months ago, Aug 24, 2019, to Inventories Requests)
[...] Looks like you got this minifigure? (Minifigure ovr037a) You can add it as an alternate minifigure to the set. (57 months ago, Aug 23, 2019, to Inventories Requests)
Please make changes to the following inventory: (Set 7641-1) * Add 2 Part 61252 Red Plate, Modified 1 x 1 with Clip Horizontal (thick open O clip) (Alternate) [...] (57 months ago, Aug 23, 2019, to Inventories Requests)
Please make changes to the following inventory: (Set 75885-1) * Add 1 Part 85984pb225R Blue Slope 30 1 x 2 x 2/3 with Dark Blue and White Abstract Triangular Shapes on Blue Background [...] (57 months ago, Aug 23, 2019, to Inventories Requests)
Please make changes to the following inventory: (Set 70163-1) * Add 1 Part 41747pb074 Bright Light Orange Wedge 6 x 2 Right with Red Caution Triangle, Black Biohazard Symbol and [...] (57 months ago, Aug 22, 2019, to Inventories Requests)
Please make changes to the following inventory: (Set 70814-1) * Add 4 Part 2436b Yellow Bracket 1 x 2 - 1 x 4 with Rounded Corners (Alternate) (match ID 5) * Change [...] (57 months ago, Aug 22, 2019, to Inventories Requests)
Please make changes to the following inventory: (Set 7436-1) * Add 1 Part 31110 Dark Gray Duplo, Brick 2 x 2 x 2 Comments from Submitter: As shown in the picture used on your [...] (57 months ago, Aug 22, 2019, to Inventories Requests)
[...] [...] Another nice catch! ;) I looked over the "Inventory Change Request" help page, and it seems that there is no mention of this at all. And there really should [...] (57 months ago, Aug 22, 2019, to Inventories Requests)