Regression in extended path

The attached file runs in 4.6.4 but crashes in the unstable. We should add the file to the testsuite. rbc_OBC_pf.mod

changed milestone to %5.x

added bug label

mentioned in commit 6a598f5f

mentioned in merge request !1854 (closed)

assigned to @stepan-a

mentioned in merge request !1857 (closed)

closed with commit 5ab724d3