I tested version 19.01.3-1~ubuntu19.04.1 (from -proposed) on a fully updated 19.04, and can no longer reproduce this issue: The terminal window opens - as expected - in directory ~/Desktop/aaa'bbb/. Injecting commands as discussed in comment 2 appears to be no longer possible.
I tested version 19.01.3- 1~ubuntu19. 04.1 (from -proposed) on a fully updated 19.04, and can no longer reproduce this issue: The terminal window opens - as expected - in directory ~/Desktop/aaa'bbb/. Injecting commands as discussed in comment 2 appears to be no longer possible.