test repeated g_hash_table_remove_all calls
test repeated g_hash_table_remove_all calls

I just came across a situation where code ended up stuck in
an infinite loop in GHashTable code, so lets verify that this
is a safe thing.

johne53/MB3Glib,MathieuDuponchelle/glib,cention-sany/glib,gale320/glib,cention-sany/glib,MathieuDuponchelle/glib,endlessm/glib,mzabaluev/glib,mzabaluev/glib,tchakabam/glib,ieei/glib,gale320/glib,ieei/glib,Distrotech/glib,johne53/MB3Glib,tchakabam/glib,cention-sany/glib,tchakabam/glib,gale320/glib,Distrotech/glib,endlessm/glib,mzabaluev/glib,ieei/glib,Distrotech/glib,Distrotech/glib,endlessm/glib,ieei/glib,MathieuDuponchelle/glib,johne53/MB3Glib,tchakabam/glib,johne53/MB3Glib,MathieuDuponchelle/glib,johne53/MB3Glib,MathieuDuponchelle/glib,johne53/MB3Glib,gale320/glib,ieei/glib,gale320/glib,mzabaluev/glib,Distrotech/glib,cention-sany/glib,endlessm/glib,endlessm/glib,cention-sany/glib,tchakabam/glib,mzabaluev/glib