Migration script crash

[Garamotte]

When upgrading the module from version 5.0.0.10.0 to the last commit, the last migration script (pre-10-convert-service.py) crashes because the "report_id" columns doesn't exist yet in the database.

Traceback (most recent call last):
File "/srv/openerp/server/openerp/addons/base/ir/ir_cron.py", line 230, in _acquire_job
registry = openerp.pooler.get_pool(db_name)
File "/srv/openerp/server/openerp/pooler.py", line 49, in get_pool
return get_db_and_pool(db_name, force_demo, status, update_module)[1]
File "/srv/openerp/server/openerp/pooler.py", line 33, in get_db_and_pool
registry = RegistryManager.get(db_name, force_demo, status, update_module)
File "/srv/openerp/server/openerp/modules/registry.py", line 192, in get
update_module)
File "/srv/openerp/server/openerp/modules/registry.py", line 218, in new
openerp.modules.load_modules(registry.db, force_demo, status, update_module)
File "/srv/openerp/server/openerp/modules/loading.py", line 350, in load_modules
force, status, report, loaded_modules, update_module)
File "/srv/openerp/server/openerp/modules/loading.py", line 256, in load_marked_modules
loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)
File "/srv/openerp/server/openerp/modules/loading.py", line 158, in load_module_graph
migrations.migrate_module(package, 'pre')
File "/srv/openerp/server/openerp/modules/migration.py", line 186, in migrate_module
mod.migrate(self.cr, pkg.installed_version)
File "jasper_server/migrations/7.0.6.3/pre-10-convert-service.py", line 45, in migrate
File "/srv/openerp/server/openerp/sql_db.py", line 161, in wrapper
return f(self, _args, *_kwargs)
File "/srv/openerp/server/openerp/sql_db.py", line 226, in execute
res = self.obj.execute(query, params)
ProgrammingError: ERREUR: la colonne « report_id » n'existe pas
LINE 1: SELECT report_id, 'jasper.report'||id as id, name FROM jasp...