obscache: update the variable tracking on disk state after write
Since we updated the on disk content, we should update that value.
In practice the object will likely be discarded after the write, but there is
nothing wrong in being more correct.
import hghave
@hghave.check("docgraph-ext", "Extension to generate graph from repository")
def docgraph():
try:
import hgext.docgraph
hgext.docgraph.cmdtable # trigger import
except ImportError:
try:
import hgext3rd.docgraph
hgext3rd.docgraph.cmdtable # trigger import
except ImportError:
return False
return True