Incorrect behavior in case of watchpoint

I've set watchpoint with command `watch -l` and it was saved in
KDevelop session. Now it doesn't start debug session because it ends
up in endless loop:

(gdb) 2106-break-watch "-location m_part_spec.start_part"
2106^error,msg="-break-watch: Unknown option ``location
m_part_spec.start_part''"
(gdb) 2107-break-watch "-location m_part_spec.start_part"
2107^error,msg="-break-watch: Unknown option ``location
m_part_spec.start_part''"
(gdb) 2108-break-watch "-location m_part_spec.start_part"
2108^error,msg="-break-watch: Unknown option ``location
m_part_spec.start_part''"
(gdb) 2109-break-watch "-location m_part_spec.start_part"
2109^error,msg="-break-watch: Unknown option ``location
m_part_spec.start_part''"
(gdb) 2110-break-watch "-location m_part_spec.start_part"
2110^error,msg="-break-watch: Unknown option ``location
m_part_spec.start_part''"
...

Though I've managed to delete breakpoint from Breakpoints tab and start again.