Questions about portion of code in agent_registry.c (netsnmp_subtree_load)

I am trying to understand the purpose of a portion of
code in agent_registry.c/netsnmp_subtree_load. The
code was submitted in version 5.25.2.1. Here is the
code:
if (!netsnmp_subtree_find_first(context_name)) {
static int inloop = 0;
if (!inloop) {
oid ccitt[1] = { 0 };
oid iso[1] = { 1 };
oid joint_ccitt_iso[1] = { 2 };
inloop = 1;
printf("netsnmp_subtree_load loading defaults %d
\n",__LINE__);

netsnmp_register_null_context(snmp_duplicate_objid (ccitt,
1), 1,

context_name);

netsnmp_register_null_context(snmp_duplicate_objid (iso,
1), 1,

context_name);

netsnmp_register_null_context(snmp_duplicate_objid (joint_ccitt_iso,
1),
1,
context_name);
inloop = 0;
}
}

Here is the comment when the code was committed:

The comment made during submission was:
Revision : 5.25.2.1
Date : 2004/12/16 19:55:54
Author : 'rstory'
State : 'Exp'
Lines : +3 -2
Description :
cache next ptr b4 object could be freed


Can you explain the purpose of this code? Can you
explain why inloop is set to 0 after being set to 1?
It would seem like there is a bug here or some
extraneous code.



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