When EEVEE is rendering multiple samples via eevee_draw_scene, the command submission and in-flight memory pressure would grow until all samples completed, due to lack of intermediate flushing of GPU work and memory. This patch adds a command flush and memory clear for this case which occurs with high TAA sample counts during saving, similar to the process in EEVEE_render_draw. Authored by Apple: Michael Parkin-White Pull Request: blender/blender#107221