[WIP] Correct the ref.

Author: hageboeck

.github/workflows/root-docs-ci.yml

@@ -46,7 +46,7 @@ jobs:
       PLATFORM: alma10
       DOC_DIR: master
       DOC_LOCATION: /github/home
-      BASE_REF: ${{ inputs.input_branch == null && 'master' || inputs.input_branch }}
+      BASE_REF: ${{ inputs.input_branch == null && github.ref_name || inputs.input_branch }}
       WEB_DIR_NAME: ${{ inputs.eos_upload_directory == null && '' || inputs.eos_upload_directory }}
       TAR_FILE: htmlmaster.tar.gz