ID 348165 - Nuke Studio saveas slows down/hangs when the timeline is disk cached

Problem summary
Nuke Studio saveas slows down/hangs when the timeline is disk cached
It seems that the more of the timeline that is cached, the longer the save process takes

Customer reported version
nuke.11.1v3

Customer reported platform

Steps to reproduce

1) Open Nuke Studio 11+

2) Import a series of .dpxs, equivalent to a couple of minutes worth of footage

3) Add the clips to a timeline

4) Save the project, it takes a second to save

5) SaveAs the project with a different name, it still takes a second to save

6) Right CLick the timeline > Disk Cache > Cache Sequence range

7) SaveAs the project, it will now take significantly longer to save

Reproduced by support
Nuke Studio 11.1v3 - CentOS 6.9 - Windows 10 - MacOSX 10.13
Nuke Studio 11.1v1 - CentOS 6.9
Nuke Studio 11.0v4 - CentOS 6.9
Nuke Studio 11.0v1 - CentOS 6.9 - Windows 10 - MacOSX 10.13

Earliest version tested
Nuke Studio 11.0v1 - This feature did not exist before this version
Expected behaviour
For Nuke Studio to save the project quickly when using saveas

Actual behaviour
It took much longer to save