[...]

state without impacting any branches by performing another checkout.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
  git checkout -b new_branch_name
HEAD is now at 0ed64c3... - updated to 5.0.3 (integer overflow fix)
fatal: HEAD does not point to a branch
Available branches: master
Searching for tag auto/ti/xorg-lib-libXfixes-5.0.3-1...
Searching for tag auto/ti/xorg-lib-libXfixes-5_0_3-1...
--2017-04-13 07:25:56--  http://distfiles.pld-linux.org/distfiles/by-md5/0/7/07e01e046a0215574f36a3aacb148be0/libXfixes-5.0.3.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: 294400 (288K) [application/x-bzip2]
Saving to: 'libXfixes-5.0.3.tar.bz2'
     0K .......... .......... .......... .......... .......... 17% 1.06M 0s
    50K .......... .......... .......... .......... .......... 34% 2.08M 0s
   100K .......... .......... .......... .......... .......... 52%  114M 0s
   150K .......... .......... .......... .......... .......... 69%  238M 0s
   200K .......... .......... .......... .......... .......... 86% 2.14M 0s
   250K .......... .......... .......... .......              100%  311M=0.09s
2017-04-13 07:25:57 (3.01 MB/s) - 'libXfixes-5.0.3.tar.bz2' saved [294400/294400]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-lib-libXfixes-5.0.3-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 0ed64c3... - updated to 5.0.3 (integer overflow fix)
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/xorg-lib-libXfixes-5.0.3-1
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.85502
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libXfixes-5.0.3
Begin-TLD-Builder-Info
Build-Time: user:0.57s sys:0.15s real:2.03s (faults io:0 non-io:91211)
Files queued for ftp:
    299569 xorg-lib-libXfixes-5.0.3-1.src.rpm
       196 xorg-lib-libXfixes-5.0.3-1.src.rpm.uploadinfo
End-TLD-Builder-Info