Select "All Similar Elements in Range Selection" for Spacers fails
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 18.104.22.16831, revision: b45221c
1) Load this test file: spacers selection.mscz
2) Select the 2th and 3th systems (measures 5 to 12)
3) Right-click a spacer -> Select -> All Similar Elements in Range Selection
Expected result : these spacers become selected.
Current result: failure, nothing happens.
- Related to this thread: #294673: Include some batch operations with spacers
And especially this comment (related, too) : https://musescore.org/en/node/293431#comment-939928)