Max flow segfaults with source=target
graph-tool is segfaulting when running maxflow with source=target
version: '2.29 (commit d4154c6c, Tue Aug 27 13:21:10 2019 +0000)' python version: 3.7.5
import graph_tool as gt
import graph_tool.flow as gtf
g = gt.Graph()
v1 = g.add_vertex()
v2 = g.add_vertex()
e = g.add_edge(v1, v2)
cap = g.new_edge_property("double", val=1)
result = gtf.edmonds_karp_max_flow(g, source=v1, target=v1, capacity=cap)