dont stop expiring versions if we cant check if the source file still exists
dont stop expiring versions if we cant check if the source file still exists

instead continue assuming it still exists

Signed-off-by: Robin Appelman <474ee9ee179b0ecf0bc27408079a0b15eda4c99d@icewind.nl>

nextcloud/server,nextcloud/server,nextcloud/server,nextcloud/server