Tested on openSUSE 42.3
KDE Plasma version: 5.8.7
KDE Frameworks version: 5.32
Qt version: 5.6.2
Kernel version: 4.4.104-39-default
OS Type: 64-bit
Steps:
# Select `Save` button.
# Close Spectacle.
# Open Spectacle.
# `Save` is active.
# Select `Save As`.
# Close Spectacle.
# Open Spectacle.
# `Save As` is active.