core/local/checksumer: Fix err code equality comparison (should be strict)
core/local/checksumer: Fix err code equality comparison (should be strict)

nono/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop