CI/Linux: Hopefully fix Flathub release versioning

.github/workflows/linux_build_flatpak.yml

@@ -49,6 +49,13 @@ jobs:
         with:
           submodules: recursive
 
+      # Hackity hack. When running the workflow on a schedule, we don't have the tag,
+      # it doesn't fetch tags, therefore we don't get a version. So grab them manually.
+      - name: Fetch tags
+        if: inputs.publish == true
+        id: fetch-tags
+        run: git fetch --tags --no-recurse-submodules
+
       - name: Prepare Artifact Metadata
         id: artifact-metadata
         shell: bash

.github/workflows/scripts/linux/generate-metainfo.sh

@@ -3,8 +3,8 @@
 SCRIPTDIR=$(dirname "${BASH_SOURCE[0]}")
 
 if [[ $# -lt 1 ]]; then
-    echo "Output file must be provided as a parameter"
-    exit 1
+	echo "Output file must be provided as a parameter"
+	exit 1
 fi
 
 OUTFILE=$1
@@ -13,7 +13,11 @@ GIT_VERSION=$(git tag --points-at HEAD)
 GIT_HASH=$(git rev-parse HEAD)
 
 if [[ "${GIT_VERSION}" == "" ]]; then
-    GIT_VERSION=$(git rev-parse HEAD)
+	# In the odd event that we run this script before the release gets tagged.
+	GIT_VERSION=$(git describe --tags)
+	if [[ "${GIT_VERSION}" == "" ]]; then
+		GIT_VERSION=$(git rev-parse HEAD)
+	fi
 fi
 
 echo "GIT_DATE: ${GIT_DATE}"