gen_scmversion: Don't use latest GitHub release tag

src/scmversion/gen_scmversion.bat

@@ -2,7 +2,7 @@
 
 SET VERSIONFILE="scmversion.cpp"
 FOR /F "tokens=* USEBACKQ" %%g IN (`git rev-parse --abbrev-ref HEAD`) do (SET "BRANCH=%%g")
-FOR /F "tokens=* USEBACKQ" %%g IN (`git describe --tags --dirty`) do (SET "TAG=%%g")
+FOR /F "tokens=* USEBACKQ" %%g IN (`git describe --tags --dirty --exclude latest`) do (SET "TAG=%%g")
 
 SET SIGNATURELINE=// %BRANCH% %TAG%
 SET /P EXISTINGLINE=< %VERSIONFILE%

src/scmversion/gen_scmversion.sh

@@ -2,7 +2,7 @@
 
 VERSION_FILE="scmversion.cpp"
 BRANCH=$(git rev-parse --abbrev-ref HEAD | tr -d '\r\n')
-TAG=$(git describe --tags --dirty | tr -d '\r\n')
+TAG=$(git describe --tags --dirty --exclude latest | tr -d '\r\n')
 
 SIGNATURE_LINE="// ${BRANCH} ${TAG}"