[...]

  git checkout -b new_branch_name
HEAD is now at 7076b1d... - release 5 (by relup.sh)
fatal: HEAD does not point to a branch
Available branches: master
Searching for tag auto/ti/gypsy-0.9-5...
Searching for tag auto/ti/gypsy-0_9-5...
--2018-01-24 20:25:57--  http://distfiles.pld-linux.org/distfiles/by-md5/e/2/e2d186df9c2cc3b70a027043e22acf1a/gypsy-0.9.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 523027 (511K) [application/x-gzip]
Saving to: 'gypsy-0.9.tar.gz'
     0K .......... .......... .......... .......... ..........  9% 1.09M 0s
    50K .......... .......... .......... .......... .......... 19% 2.14M 0s
   100K .......... .......... .......... .......... .......... 29% 54.4M 0s
   150K .......... .......... .......... .......... .......... 39% 55.1M 0s
   200K .......... .......... .......... .......... .......... 48% 2.32M 0s
   250K .......... .......... .......... .......... .......... 58% 50.1M 0s
   300K .......... .......... .......... .......... .......... 68% 36.8M 0s
   350K .......... .......... .......... .......... .......... 78%  169M 0s
   400K .......... .......... .......... .......... .......... 88% 2.51M 0s
   450K .......... .......... .......... .......... .......... 97% 46.1M 0s
   500K ..........                                            100%  157M=0.1s
2018-01-24 20:25:58 (4.39 MB/s) - 'gypsy-0.9.tar.gz' saved [523027/523027]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/gypsy-0.9-5.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 7076b1d... - release 5 (by relup.sh)
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/gypsy-0.9-5
On detached HEAD. Use -r BRANCHNAME to override
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.34604
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf gypsy-0.9
Begin-TLD-Builder-Info
Build-Time: user:0.99s sys:0.29s real:2.47s (faults io:4 non-io:107115)
Files queued for ftp:
    530258 gypsy-0.9-5.src.rpm
       181 gypsy-0.9-5.src.rpm.uploadinfo
End-TLD-Builder-Info