redistributePar does not work with collated I/O format

Hi, it seems that the redistributePar Tool is only written for uncollated format. Using collated format is not possible. Process stucks - see logfile. For reproducing I run the cavitiy mesh/parallel case

controlDict adds: OptimisationSwitches { //- Parallel IO file handler // collated (default), collated or masterUncollated fileHandler collated; maxThreadFileBufferSize 0; -> this is set to zero by purpose for cluster setup! maxMasterFileBufferSize 2e9; }

log.redistributePar.decompose

## Reattaching the author to the issue ticket: @hxaxtma ##