wipe destination in _CURRENT

UpdateSequences.ps1

@@ -174,6 +174,15 @@ try {
             $srcFull = $parts[1]
             $seqName = $parts[2]
             $dstAbs = Join-Path $currentDir $seqName
+            if (Test-Path -LiteralPath $dstAbs) {
+                "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')]   WIPE: removing existing destination '$dstAbs'" | Add-Content -LiteralPath $logFile
+                try {
+                    Remove-Item -LiteralPath $dstAbs -Recurse -Force -ErrorAction Stop
+                }
+                catch {
+                    "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')]   WIPE ERROR: $($_.Exception.Message)" | Add-Content -LiteralPath $logFile
+                }
+            }
             if (-not (Test-Path -LiteralPath $dstAbs)) { New-Item -ItemType Directory -Path $dstAbs -Force | Out-Null }
             "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')] Mirror: '$srcFull' -> '$dstAbs'" | Add-Content -LiteralPath $logFile
             $robocopyArgs = @(