resetting AppVeyor's build number upon tagged build completion

Author: salaros

appveyor.yml

@@ -21,6 +21,8 @@ environment:
   VERSION_SIMPLE: '{version}'
   VERSION_INFORMATIONAL: '{version}'
   VERSION_UNSTABLE_SUFFIX: '-preview-$(APPVEYOR_BUILD_NUMBER)'
+  APPVEYOR_TOKEN:
+    secure: LtoVAPATN9iTCl1zkCvEktqP92QSEEngyS3vqG3GphE=
 
 init:
 - ps: |
@@ -119,6 +121,23 @@ deploy:
       secure: 3zmnmVBweTgdk4SBM/rWHdC9JOM9s0pxm1bw1d+WHDo=
     artifact: NuGet_Files
 
+    
+after_deploy:
+  - ps: |
+        if ($env:APPVEYOR_REPO_TAG -eq "true" -and $env:APPVEYOR_REPO_TAG_NAME) {
+            $apiUrl = 'https://ci.appveyor.com/api'
+            $headers = @{
+                "Authorization" = "Bearer $env:APPVEYOR_TOKEN"
+                "Content-type" = "application/json"
+                "Accept" = "application/json"
+            }
+            $build = @{
+                nextBuildNumber = 1
+            }
+            $json = $build | ConvertTo-Json
+            Invoke-RestMethod -Method Put "$apiUrl/projects/$env:APPVEYOR_ACCOUNT_NAME/$env:APPVEYOR_PROJECT_SLUG/settings/build-number" -Body $json -Headers $headers
+        }
+
 # Start builds on tags only (GitHub and BitBucket)
 skip_non_tags: false