(chocolatey-core.extension) Unescape app name pattern when calling 'G…

…et-UninstallRegistryKey'

This is needed in some rare cases when there is an actual
need to use a regex pattern when calling 'Get-AppInstallLocation'.
fixes #784

extensions/chocolatey-core.extension/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 1.3.6
 
 - Bugfix `Get-AppInstallLocation`: Changed key to be forced as a single value (instead of array)
+- Bugfix `Get-AppInstallLocation`: Added unescaping of app name pattern when calling 'Get-UninstallRegistryKey' ([#784](https://github.com/chocolatey/chocolatey-coreteampackages/issues/784))
 
 ## 1.3.5
 

extensions/chocolatey-core.extension/extensions/Get-AppInstallLocation.ps1

@@ -40,7 +40,9 @@ function Get-AppInstallLocation {
     $ErrorActionPreference = "SilentlyContinue"
 
     Write-Verbose "Trying local and machine (x32 & x64) Uninstall keys"
-    $key = Get-UninstallRegistryKey $AppNamePattern | select -First 1
+    # Needed to pass in the correct wildcard pattern to 'Get-UninstallRegistryKey'
+    $unescapedAppNamePattern = [regex]::Unescape($AppNamePattern)
+    $key = Get-UninstallRegistryKey $unescapedAppNamePattern | select -First 1
     if ($key) {
         Write-Verbose "Trying Uninstall key property 'InstallLocation'"
         $location = $key.InstallLocation