Merge MEDUSA branch using command:
svn merge -r 5711:8182 \u200b\u200bsvn+ssh://forge.ipsl.jussieu.fr/ipsl/forge/projets/nemo/svn/branches/NERC/dev_r5518_NOC_MEDUSA_Stable
and run "fcm conflicts" to resolve conflicts - mainly tree conflicts in AGRIF files.