The library that reported this claims it only happens when typing in a barcode, not when scanning.
If typing the barcode in, I find hitting "Tab" instead of "Enter" results in only having to click Submit once. This follows the cursor focus issue as described by Jennifer.
I was just coming here to report this bug.
We are also seeing this. Evergreen 3.0.8.
The library that reported this claims it only happens when typing in a barcode, not when scanning.
If typing the barcode in, I find hitting "Tab" instead of "Enter" results in only having to click Submit once. This follows the cursor focus issue as described by Jennifer.