Switch to GitHub generated tarball

.gitignore

@@ -22,3 +22,4 @@
 /sddm-e07e805c21310572b4fecc810fd5610b1d3d03fd.tar.gz
 /sddm-e6524335a54ca469401ee9487adc4ae973860aad.tar.gz
 /sddm-0.20.0.tar.xz
+/sddm-0.20.0.tar.gz

sddm.spec

@@ -28,7 +28,9 @@ Url:            https://github.com/sddm/sddm
 %if 0%{?commitdate}
 Source0:        %{url}/archive/%{commit}/%{name}-%{commit}.tar.gz
 %else
-Source0:        %{url}/releases/download/v%{version}/%{name}-%{version}.tar.xz
+Source0:        %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
+# Broken: https://github.com/sddm/sddm/pull/1743
+#Source0:        %{url}/releases/download/v%{version}/%{name}-%{version}.tar.xz
 %endif
 
 ## upstream patches

sources

@@ -1 +1 @@
-SHA512 (sddm-0.20.0.tar.xz) = 776346c21177bdd099e79aa6baf7bd93d0220bf27f65c6035c1bd6284df63e92e87bd0cfbc2200ee9b0cb2028c5bd9c77c4edfcf0a0c63aa909f80a4904c5c3a
+SHA512 (sddm-0.20.0.tar.gz) = 0f64b405f1451873a01a2210530feb6f4cbbdea17be9d039c105088963a48322968db7b60c0d20ac5d97c8ec2a19e5130f0a74c0f9de58c61453d8ce8bb6272a