Add extra variable to store original version number

configure/modules/CONFIG

 # -*- mode: Makefile;-*-
 
 # Update the module version (for numeric versions) with a build number of 0 if none is specified
+E3_MODULE_VERSION_ORIG:=$(E3_MODULE_VERSION)
 E3_MODULE_VERSION:=$(E3_MODULE_VERSION)$(shell [[ "$(E3_MODULE_VERSION)" =~ ^[0-9]+\.[0-9]+\.[0-9]+$$ ]] && echo +0)
 
 include $(EPICS_BASE)/configure/CONFIG_BASE_VERSION

configure/modules/DEFINES_FT

@@ -15,7 +15,7 @@ git submodule update --remote --merge $@/
 endef
 
 define patch_site
-patches=$$(ls $(TOP)/patch/Site/$(E3_MODULE_VERSION)-*.p0.patch 2> /dev/null); \
+patches=$$(ls $(TOP)/patch/Site/$(E3_MODULE_VERSION_ORIG)-*.p0.patch 2> /dev/null); \
 if [ -n "$$patches" ]; then \
   for i in $$patches; do \
     printf "\nPatching %s with the file : %s\n" "$(E3_MODULE_SRC_PATH)" "$$i"; \