Description:
Memory leaking in Writer

Steps to Reproduce:
1. Open memory monitoring tool (activity manager on Mac)
2. Open the attached file (warning; looping bug doc, which eats memory by default; chosen on purpose)
3. Let it run for say 3000 pages.. and close.. longer is better, but LibreOffice didn't want to close the bug doc anymore (bug could be system specs) (and need 'normal close, not a Force Quite)
4. Notice a memory bump after doc is closed
5. Repeat 2/3 times.. notice memory usage going up permanently
6. Know use 4.3.7.2. You have to scroll down (else the page count doesn't start.. slower timer stuff. so force it a bit and try to reach 3000 pages.. or less and more runs.
7. Repeat 2/3 times

Actual Results:
Memory goes up with 7.0. Stays at the same level with 4.3.7.2. I didn't test all other versions explicitly. However, in my long term hunt fort this bug, my experience is that this started with 4.4. I can run 4.3.7.2 for multiple weeks without close without large scale memory issues.. 

Expected Results:
Memory like 4.3.7.2


Reproducible: Always


User Profile Reset: No



Additional Info:
Found in
Version: 7.0.0.0.alpha1
Build ID: 6a03b2a54143a9bc0c6d4c7f1...
CPU threads: 4; OS: Mac OS X 10.12.6; UI render: GL; VCL: osx; 
Locale: nl-NL (nl_NL.UTF-8); UI: en-US
Calc: threaded

but not in
Version: 4.3.7.2
Build ID: 8a35821d8636a03b8bf4e15b48f59794652c68ba