protocol-caps: use hash algorithm from passed-in repository

In `send_info()`, we pass in a repository but then use `get_oid_hex()`
to parse passed-in object IDs, which implicitly uses `the_repository`.
Fix this by using the hash algorithm from the passed-in repository
instead.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: pks-t

protocol-caps.c

@@ -7,6 +7,7 @@
 #include "hex.h"
 #include "object.h"
 #include "object-store-ll.h"
+#include "repository.h"
 #include "string-list.h"
 #include "strbuf.h"
 
@@ -52,7 +53,7 @@ static void send_info(struct repository *r, struct packet_writer *writer,
 		struct object_id oid;
 		unsigned long object_size;
 
-		if (get_oid_hex(oid_str, &oid) < 0) {
+		if (get_oid_hex_algop(oid_str, &oid, r->hash_algo) < 0) {
 			packet_writer_error(
 				writer,
 				"object-info: protocol error, expected to get oid, not '%s'",