Do not preprocess excluded images
Should we or not? The fix is 2 lines if automatic, more if we add a selector for the option in the GUI.
diff --git a/src/core/preprocess.c b/src/core/preprocess.c
index cacb2ae8..8b53284c 100644
--- a/src/core/preprocess.c
+++ b/src/core/preprocess.c
@@ -436,6 +436,8 @@ gpointer prepro_worker(gpointer p) {
void start_sequence_preprocessing(struct preprocessing_data *prepro) {
struct generic_seq_args *args = create_default_seqargs(prepro->seq);
args->force_float = !com.pref.force_16bit && prepro->output_seqtype != SEQ_SER;
+ args->filtering_criterion = seq_filter_included;
+ args->nb_filtered_images = prepro->seq->selnum;
args->compute_size_hook = prepro_compute_size_hook;
args->compute_mem_limits_hook = prepro_compute_mem_hook;
args->prepare_hook = prepro_prepare_hook;