fix upgrade error due to dictionaries symlink [release 61.0.1-2mamba;Fri Jul 13 2018]

firefox.spec

@@ -18,7 +18,7 @@
 
 Name:          firefox
 Version:       61.0.1
-Release:       1mamba
+Release:       2mamba
 Epoch:         1
 Summary:       The next generation browsing technology from mozilla.org
 Group:         Graphical Desktop/Applications/Internet
@@ -451,6 +451,12 @@ _EOF
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
+%pre
+if [ $1 -gt 1 ]; then
+   [ -L "%{firefoxappdir}/dictionaries" ] || rm -rf "%{firefoxappdir}/dictionaries"
+fi
+:
+
 %post
 update-desktop-database &> /dev/null || :
 if [ $1 -eq 1 ]; then
@@ -1898,6 +1904,9 @@ Zulu language support for Firefox.
 #%{firefoxappdir}/browser/extensions/langpack-zu@firefox.mozilla.org.xpi
 
 %changelog
+* Fri Jul 13 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 61.0.1-2mamba
+- fix upgrade error due to dictionaries symlink
+
 * Sun Jul 08 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 61.0.1-1mamba
 - update to 61.0.1