1. Select "Build dotplot" from main menu
2. Select two sequences and press Next
(sequences are loaded and another dialog appears)
3. Press "Load sequence" button and select a fasta file in appeared dialog
(nothing happens. If cancel pressed, sequence is loaded)
Problem 1: a new task for opening view for selected file is added, but not executed until the dialog is closed.
Problem 2: if selected file was a fasta with multiple sequences (e.g. _common_data/scenarios/dp_view/dpm1.fa), after closing dialog its loading causes crash on safe point: