diff --git a/mmgen/addr.py b/mmgen/addr.py
index 3ac66a7d..a6556fcd 100755
--- a/mmgen/addr.py
+++ b/mmgen/addr.py
@@ -290,21 +290,17 @@ class AddrListIDStr(unicode,Hilite):
 	color = 'green'
 	trunc_ok = False
 	def __new__(cls,addrlist,fmt_str=None):
-		try: int(addrlist.data[0].idx)
-		except:
-			s = '(no idxs)'
-		else:
-			idxs = [e.idx for e in addrlist.data]
-			prev = idxs[0]
-			ret = prev,
-			for i in idxs[1:]:
-				if i == prev + 1:
-					if i == idxs[-1]: ret += '-', i
-				else:
-					if prev != ret[-1]: ret += '-', prev
-					ret += ',', i
-				prev = i
-			s = ''.join([unicode(i) for i in ret])
+		idxs = [e.idx for e in addrlist.data]
+		prev = idxs[0]
+		ret = prev,
+		for i in idxs[1:]:
+			if i == prev + 1:
+				if i == idxs[-1]: ret += '-', i
+			else:
+				if prev != ret[-1]: ret += '-', prev
+				ret += ',', i
+			prev = i
+		s = ''.join(map(unicode,ret))
 
 		if fmt_str:
 			ret = fmt_str.format(s)
diff --git a/mmgen/regtest.py b/mmgen/regtest.py
index bdb1af4d..0ff034ae 100755
--- a/mmgen/regtest.py
+++ b/mmgen/regtest.py
@@ -42,7 +42,9 @@ common_args = lambda: (
 
 def start_daemon(user,quiet=False,daemon=True,reindex=False):
 	# requires Bitcoin ABC version >= 0.16.2
-	add_args = ((),('--usecashaddr=0',))[g.proto.daemon_name=='bitcoind-abc']
+	add_args = ()
+	if g.proto.daemon_name == 'bitcoind-abc': add_args = ('--usecashaddr=0',)
+	elif g.proto.daemon_name == 'litecoind':  add_args = ('--mempoolreplacement=1',)
 	cmd = (
 		g.proto.daemon_name,
 		'--listen=0',
diff --git a/mmgen/util.py b/mmgen/util.py
index 4f673d78..65b189ce 100755
--- a/mmgen/util.py
+++ b/mmgen/util.py
@@ -794,10 +794,9 @@ def do_license_msg(immed=False):
 def get_daemon_cfg_options(cfg_keys):
 	cfg_file = os.path.join(g.proto.daemon_data_dir,g.proto.name+'.conf')
 	try:
-		cfg = dict([(k,v) for k,v in [
-			split2(str(line).translate(None,'\t '),'=')
-				for line in get_lines_from_file(cfg_file,'',silent=bool(opt.quiet))
-					] if k in cfg_keys])
+		lines = get_lines_from_file(cfg_file,'',silent=bool(opt.quiet))
+		kv_pairs = [split2(str(line).translate(None,'\t '),'=') for line in lines]
+		cfg = dict([(k,v) for k,v in kv_pairs if k in cfg_keys])
 	except:
 		vmsg("Warning: '{}' does not exist or is unreadable".format(cfg_file))
 		cfg = {}
diff --git a/scripts/test-release.sh b/scripts/test-release.sh
index a6e38e5f..49a6a825 100755
--- a/scripts/test-release.sh
+++ b/scripts/test-release.sh
@@ -266,9 +266,9 @@ f_b2x_rt='Regtest (Bob and Alice) mode tests for B2X completed'
 i_ltc='Litecoin'
 s_ltc='The litecoin daemon must both be running for the following tests'
 t_ltc=(
-	"$test_py --coin=ltc -On dfl_wallet main"
-	"$test_py --coin=ltc --segwit -On dfl_wallet main"
-	"$test_py --coin=ltc --segwit-random -On dfl_wallet main"
+	"$test_py --coin=ltc -On dfl_wallet main ref ref_other"
+	"$test_py --coin=ltc -On --segwit dfl_wallet main ref ref_other"
+	"$test_py --coin=ltc -On --segwit-random dfl_wallet main"
 	"$tooltest_py --coin=ltc rpc"
 )
 f_ltc='You may stop the litecoin daemon if you wish'
@@ -362,6 +362,7 @@ tests=$dfl_tests
 
 check_args
 
+echo "Running tests: $tests"
 run_tests "$tests"
 rm -rf /tmp/mmgen-test-release-*