[Bug-ddrescue] ddrescue 1.22 strange behavior on Red Hat Enterprise Linux 7.4

[Dennis Clarke]

I made the attempt to write a bootable DVD iso file to a USB device and 
the ddrescue instantly responded with "Finished" and reported an obscene
and impossible "current rate" and then hung for five minutes :

address@hidden solaris_11.4]# /usr/local/bin/ddrescue --force -v -v -c 16 
-r 2 sol-11_4-beta-text-x86.iso /dev/sdc
GNU ddrescue 1.22
About to copy 721629 kBytes from 'sol-11_4-beta-text-x86.iso' 
(721629184) to '/dev/sdc' [UNKNOWN] (2002779648)
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size:  16 sectors       Initial skip size: 128 sectors
Sector size: 512 Bytes
Direct in: no     Direct out: no     Sparse: no     Truncate: no
Trim: yes         Scrape: yes        Max retry passes: 2

     ipos:  721625 kB, non-trimmed:        0 B,  current rate:    240 MB/s
     opos:  721625 kB, non-scraped:        0 B,  average rate:    240 MB/s
non-tried:        0 B,  bad-sector:        0 B,    error rate:       0 B/s
  rescued:  721629 kB,   bad areas:        0,        run time:          2s
pct rescued:  100.00%, read errors:        0,  remaining time:         n/a
                              time since last successful read:         n/a
Finished


Seems like bizarre behavior to me.

Not sure what the correct behavior should be.

Dennis