Wow, I am so shocked, I have planted and sadly murdered many seedlings and not one grew at this rate. Thank you for infoYes, it is a normal sprout. Auto or otherwise
Thank you so muchWhen you plant tap root or the pointed end of seed down, the shell case will often stay attached due to lack of resistance when emerging.
They're stretching for light as well. Both factors are easily corrected. Lightly mist, then support stem while you flick shell off with a pin or similar tool.
Lower light or raise plant to stop stretch before they fall over and you're good to go.