[...]

  git checkout -b new_branch_name
HEAD is now at 7d9d886... - updated to 1.9.0 - updated more-fingers patch
fatal: HEAD does not point to a branch
Available branches: master
Searching for tag auto/ti/xorg-driver-input-synaptics-1.9.0-1...
Searching for tag auto/ti/xorg-driver-input-synaptics-1_9_0-1...
--2018-03-15 09:15:19--  http://distfiles.pld-linux.org/distfiles/by-md5/5/8/58e5b7722a402114093bf193962d1e3a/xf86-input-synaptics-1.9.0.tar.bz2
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: 501814 (490K) [application/x-bzip2]
Saving to: 'xf86-input-synaptics-1.9.0.tar.bz2'
     0K .......... .......... .......... .......... .......... 10% 1.20M 0s
    50K .......... .......... .......... .......... .......... 20% 2.40M 0s
   100K .......... .......... .......... .......... .......... 30%  108M 0s
   150K .......... .......... .......... .......... .......... 40% 67.9M 0s
   200K .......... .......... .......... .......... .......... 51% 2.54M 0s
   250K .......... .......... .......... .......... .......... 61% 83.3M 0s
   300K .......... .......... .......... .......... .......... 71% 41.2M 0s
   350K .......... .......... .......... .......... .......... 81% 40.9M 0s
   400K .......... .......... .......... .......... .......... 91% 1.28M 0s
   450K .......... .......... .......... ..........           100%  252M=0.1s
2018-03-15 09:15:19 (3.91 MB/s) - 'xf86-input-synaptics-1.9.0.tar.bz2' saved [501814/501814]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-driver-input-synaptics-1.9.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 7d9d886... - updated to 1.9.0 - updated more-fingers patch
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/xorg-driver-input-synaptics-1.9.0-1
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.42129
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf xf86-input-synaptics-1.9.0
Begin-TLD-Builder-Info
Build-Time: user:0.55s sys:0.10s real:2.30s (faults io:0 non-io:115453)
Files queued for ftp:
    515553 xorg-driver-input-synaptics-1.9.0-1.src.rpm
       205 xorg-driver-input-synaptics-1.9.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info