SFS Avoid Reading Index if Purge on startup is enabled

I've observed the following error, which periodically happens when the application restarts.

This is likely due to a non-clean shutdown truncating the file. Ideally Inifinispan can simply truncate or skip such entries without blocking start-up

Caused by: org.infinispan.persistence.spi.PersistenceException: org.infinispan.persistence.spi.PersistenceException: ISPN000279: Failed to re
ad stored entries from file. Error in file raster.dat at offset 4
at org.infinispan.persistence.file.SingleFileStore.start(SingleFileStore.java:135) ~[org.infinispan-infinispan-core-8.2.2.Final.jar:8
.2.2.Final]
at org.infinispan.persistence.manager.PersistenceManagerImpl.start(PersistenceManagerImpl.java:144) ~[org.infinispan-infinispan-core-
8.2.2.Final.jar:8.2.2.Final]
... 115 common frames omitted
Caused by: org.infinispan.persistence.spi.PersistenceException: ISPN000279: Failed to read stored entries from file. Error in file raster.dat at offset 4
at org.infinispan.persistence.file.SingleFileStore.rebuildIndex(SingleFileStore.java:195) ~[org.infinispan-infinispan-core-8.2.2.Fina
l.jar:8.2.2.Final]
at org.infinispan.persistence.file.SingleFileStore.start(SingleFileStore.java:126) ~[org.infinispan-infinispan-core-8.2.2.Final.jar:8
.2.2.Final]
... 116 common frames omitted