Bug 349690

Since upgrading to Ubuntu 15.04 and Kdenlive 15.04, the spacer tool doesn't work - when I use the 'spacer tool' shortcut, the cursor switches to the spacer cursor, but nothing happens when trying to slide footage along the timeline.

Reproducible: Always

Steps to Reproduce:
1. hit keyboard shortcut for spacer tool, the cursor turns into spacer icon.
2. click and drag in empty space to the left of various clips to try to move them.


Actual Results:  
nothing happens. No movement of the clips.

Expected Results:  
all clips to the right of the cursor should slide along as I drag the cursor.

Problem occurs on 15.04.03 (from kubuntu-ci) and 15.04.02 (from sunab) and Dan's daily build (from 2015-06-22). 

Ubuntu 15.04 Lenovo s440 
Intel® Core™ i7-4500U CPU @ 1.80GHz × 4 
Memory: 7,5 GiB 
Graphics: 
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller]) 
Subsystem: Lenovo Device [17aa:501d] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 
Latency: 0 Interrupt: pin A routed to IRQ 44 Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M] 
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M] 
Region 4: I/O ports at 6000 [size=64] Expansion ROM at <unassigned> [disabled] 
Capabilities: <access denied> 
Kernel driver in use: i915 06:00.0 

Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M] [1002:6660] (rev ff) (prog-if ff) 
!!! Unknown header type 7f 
Kernel driver in use: radeon 

Software versions: 
Package: kdenlive 
Status: install ok installed 
Priority: optional 
Section: video 
Installed-Size: 7394 
Maintainer: Olivier Banus <sunab@free.fr> 
Architecture: amd64 
Version: 15.04.2-0ubuntu0~sunab~vivid4 

Package: melt 
Status: install ok installed 
Priority: optional 
Section: utils 
Installed-Size: 99 
Maintainer: Olivier Banus <sunab@free.fr> 
Architecture: amd64 
Source: mlt Version: 0.9.6-0ubuntu0~sunab~vivid1 
Depends: libc6 (>= 2.4), libmlt6 (>= 0.9.6), libmlt-data (>= 0.9.6-0ubuntu0~sunab~vivid1) 

Package: ffmpeg 
Status: install ok installed 
Priority: optional 
Section: video 
Installed-Size: 1714 
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> 
Architecture: amd64 Multi-Arch: foreign 
Version: 7:2.5.7-0ubuntu0.15.04.1