Still in priority queue after closing the stream

(gdb) bt
#0  Mutex_lock (this=0x2b6c005a5858, stream=0x2b6c0cd773c0, payload_length=@0x2b6b873cdd38) at ../../../trafficserver/iocore/eventsystem/I_Lock.h:381
#1  MutexLock (this=0x2b6c005a5858, stream=0x2b6c0cd773c0, payload_length=@0x2b6b873cdd38) at ../../../trafficserver/iocore/eventsystem/I_Lock.h:449
#2  Http2ConnectionState::send_a_data_frame (this=0x2b6c005a5858, stream=0x2b6c0cd773c0, payload_length=@0x2b6b873cdd38)
    at ../../../trafficserver/proxy/http2/Http2ConnectionState.cc:1037
#3  0x00000000005f69b9 in Http2ConnectionState::send_data_frames_depends_on_priority (this=0x2b6c005a5858) at ../../../trafficserver/proxy/http2/Http2ConnectionState.cc:1000
#4  0x00000000005f6f1c in Http2ConnectionState::main_event_handler (this=0x2b6c005a5858, event=<value optimized out>, edata=<value optimized out>)
    at ../../../trafficserver/proxy/http2/Http2ConnectionState.cc:803
#5  0x000000000075408d in handleEvent (this=0x2b6b85bb7010, e=0x2b6bc41cf360, calling_code=2254) at ../../../trafficserver/iocore/eventsystem/I_Continuation.h:153
#6  EThread::process_event (this=0x2b6b85bb7010, e=0x2b6bc41cf360, calling_code=2254) at ../../../trafficserver/iocore/eventsystem/UnixEThread.cc:148
#7  0x0000000000754b6b in EThread::execute (this=0x2b6b85bb7010) at ../../../trafficserver/iocore/eventsystem/UnixEThread.cc:202
#8  0x00000000007534ca in spawn_thread_internal (a=0x21f3280) at ../../../trafficserver/iocore/eventsystem/Thread.cc:86
#9  0x00002b6b83dccaa1 in start_thread () from /lib64/libpthread.so.0
#10 0x00000038180e893d in clone () from /lib64/libc.so.6