Merge branch '148-crash-with-rate-switching-under-mdct_stereo_plc_fade_2_bg_noise' into 'main'
Resolve "Crash with rate switching under MDCT_STEREO_PLC_FADE_2_BG_NOISE" See merge request !177
Resolve "Crash with rate switching under MDCT_STEREO_PLC_FADE_2_BG_NOISE" See merge request !177